"The James Webb Space Telescope has delivered yet another astounding discovery," reports CNN, "spying an active supermassive black hole deeper into the universe than has ever been recorded." The black hole lies within CEERS 1019 — an extremely old galaxy likely formed 570 million years after the big bang — making it more than 13 billion years old. And scientists were perplexed to find just how small the celestial object's central black hole measures. "This black hole clocks in at about 9 million solar masses," according to a NASA news release. A solar mass is a unit equivalent to the mass of the sun in our home solar system — which is about 333,000 times larger than the Earth. That's "far less than other black holes that also existed in the early universe and were detected by other telescopes," according to NASA. "Those behemoths typically contain more than 1 billion times the mass of the Sun — and they are easier to detect because they are much brighter."

The ability to bring such a dim, distant black hole into focus is a key feature of the Webb telescope, which uses highly sensitive instruments to detect otherwise invisible light...

The relative smallness of the black hole at CEER 1019's center is a mystery for scientists. It's not yet clear how such a small black hole formed in the early days of the universe, which was known to produce much larger gravity wells.
NASA's announcement emphasized the power of the James Webb Space Telescope. "Not only could the team untangle which emissions in the spectrum are from the black hole and which are from its host galaxy, they could also pinpoint how much gas the black hole is ingesting and determine its galaxy's star-formation rate."

The survey also recorded evidence of eleven new galaxies — which are still "churning out new stars," according to NASA. A member of the team says these new galaxies, "along with other distant galaxies we may identify in the future, might change our understanding of star formation and galaxy evolution throughout cosmic history."

Researchers have discovered that samples of the Ryugu asteroid gathered in 2019 contain grains of stardust. NPR reports: The dust, which came from distant stars and drifted through space for millions or billions of years, could provide clues about how the solar system formed, according to Ann Nguyen, a cosmochemist at NASA's Johnson Space Center in Houston, Texas. Stars forged nearly all of the elements of the Universe. Many of the atoms that make up our bodies were themselves made inside of the core of a star somewhere else. That's because the high pressures and temperatures can fuse lightweight atomic nuclei into heavier elements. "The core is extremely hot, and then you go out in the atmosphere, it's cool enough so that gas can form and aggregate into tiny grains," Nguyen says.

Think of these little grains as cosmic dust motes. Sometimes the star that formed these grains would explode, blowing them across the galaxy like dandelion seeds. Other times they would drift away on their own -- traveling on the stellar wind into deep space. "Probably a lot of them do get destroyed," Nguyen says, "but some of them survive and they make it to our region of the universe where our solar system formed." The stardust swirled and clumped and eventually became part of the sun, and the planets, and even us. That idea led the astronomer Carl Sagan to famously remark that "We're made of star-stuff." [...]

Nguyen says the grains look different than the material from our own solar system, because different stars leave different nuclear signatures in the atoms. "It kind of lights up like a Christmas tree light," she says. "Their isotopic signatures are just so different than the material that formed in our solar system or got homogenized in the solar system." Nguyen says that the stardust grains provide some clues about the types of stars that contributed to our solar system. It also shows that exploding stars, or supernovae, probably contributed more of the dust than researchers had previously believed. But above all, she says, these tiny grains are a reminder of the way in which we fit into the vast cosmos. "It just shows us how rich our Universe is," she says. "These materials all played a part in our life here on Earth." The researchers published their findings in the journal Science Advances.

U.S. regulators will soon decide on a petition filed by General Motors' Cruise self-driving technology unit seeking permission to deploy up to 2,500 self-driving vehicles annually without human controls, a top auto safety official said on Wednesday. From a report: The petition, filed in February 2022, seeks government approval to deploy vehicles annually without steering wheels, mirrors, turn signals or windshield wipers. National Highway Traffic Safety acting Administrator Ann Carlson said Wednesday the agency "will issue a decision "in the coming weeks."

"The central issue is deciding whether vehicles that are driven not by humans but by computers need to comply with safety standards that are fundamentally about human drivers: requirements for mirrors, sun visors, windshield wipers and so forth," Carlson said. Cruise currently offers a limited service in San Francisco with a small fleet of Chevrolet Bolt vehicles fitted with driverless technology. Cruise wants to deploy its Origin vehicle, which has subway-like doors and no steering wheels.

An anonymous reader quotes a report from Ars Technica: Two small spacecraft should have now been cruising through the Solar System on the way to study unexplored asteroids, but after several years of development and nearly $50 million in expenditures, NASA announced Tuesday the probes will remain locked inside a Lockheed Martin factory in Colorado. That's because the mission, called Janus, was supposed to launch last year as a piggyback payload on the same rocket with NASA's much larger Psyche spacecraft, which will fly to a 140-mile-wide (225-kilometer) metal-rich asteroid -- also named Psyche -- for more than two years of close-up observations. Problems with software testing on the Psyche spacecraft prompted NASA managers to delay the launch by more than a year. An independent review board set up to analyze the reasons for the Psyche launch delay identified issues with the spacecraft's software and weaknesses in the plan to test the software before Psyche's launch. Digging deeper, the review panel determined that NASA's Jet Propulsion Laboratory, which manages the Psyche mission, was encumbered by staffing and workforce problems exacerbated by the COVID-19 pandemic. Psyche is now back on track for liftoff in October on a SpaceX Falcon Heavy rocket, but Janus won't be aboard.

Janus was designed to fly to two binary asteroids -- consisting of two bodies near one another -- that orbit the Sun closer to Earth than the metallic asteroid Psyche. While the Psyche mission can still reach its asteroid destination and accomplish its science mission with a launch this year, the asteroids targeted by Janus will have changed positions in the Solar System by too much since last year. They are no longer accessible to the two Janus spacecraft without flying too far from the Sun for their solar arrays to generate sufficient power. When it became clear the two Janus target asteroids were no longer reachable, scientists on the Janus team and NASA management agreed last year to remove the twin spacecraft from the Psyche launch. Scientists considered other uses for the suitcase-size Janus spacecraft, which were already built and were weeks away from shipment to Florida to begin final launch preparations when NASA decided to delay the launch of Psyche.

One of the ideas to repurpose the Janus spacecraft was to send the probes to fly by asteroid Apophis, a space rock bigger than the Empire State Building that will encroach within 20,000 miles (32,000 kilometers) from our planet's surface in 2029. For a time soon after its discovery in 2004, scientists said there was a small chance Apophis could impact Earth in 2029 or later this century, but astronomers have now ruled out any risk of a collision for the next 100-plus years. In the end, Janus fell victim to the delay of the Psyche mission and tight budget constraints at NASA. The agency said Tuesday it has directed the Janus team to "prepare the spacecraft for long-term storage."

Popular Science describes how NASA's Volatiles Investigating Polar Exploration Rover (VIPER) will use a pair of ramps to become the first rover to explore the Moon's south pole when it arrives in late 2024. From the report: "We all know how to work with ramps, and we just need to optimize it for the environment we're going to be in," says NASA's VIPER program manager Daniel Andrews. A VIPER test vehicle recently descended down a pair of metal ramps at NASA's Ames Research Center in California, as seen in the agency's recently published photos, with one beam for each set of the rover's wheels. Because the terrain where VIPER will land -- the edge of the massive Nobile Crater -- is expected to be rough, the engineering team has been testing VIPER's ability to descend the ramps at extreme angles. They have altered the steepness, as measured from the lander VIPER will descend from, and differences in elevation between the ramp for each wheel. "We have two ramps, not just for the left and right wheels, but a ramp set that goes out the back too," Andrews says. "So we actually get our pick of the litter, which one looks most safe and best to navigate as we're at that moment where we have to roll off the lander."

VIPER is a scientific successor to NASA's Lunar Crater Observation and Sensing Satellite, or LCROSS mission, which in 2009 confirmed the presence of water ice on the lunar south pole. "It completely rewrote the books on the moon with respect to water," says Andrews, who also worked on the LCROSS mission. "That really started the moon rush, commercially, and by state actors like NASA and other space agencies." The ice, if abundant, could be mined to create rocket propellant. It could also provide water for other purposes at long-term lunar habitats, which NASA plans to construct in the late 2020s as part of the Artemis moon program.

But LCROSS only confirmed that ice was definitely present in a single crater at the moon's south pole. VIPER, a mobile rover, will probe the distribution of water ice in greater detail. Drilling beneath the lunar surface is one task. Another is to move into steep, permanently shadowed regions -- entering craters that, due to their sharp geometry, and the low angle of the sun at the lunar poles, have not seen sunlight in billions of years. The tests demonstrate the rover can navigate a 15-degree slope with ease -- enough to explore these hidden dark spots, avoiding the need to make a machine designed for trickier descents. "We think there's plenty of scientifically relevant opportunities, without having to make a superheroic rover that can do crazy things," Andrews says.

Developed by NASA Ames and Pittsburgh-based company Astrobotic, VIPER is a square golf-cart-sized vehicle about 5 feet long and wide, and about 8 feet high. Unlike all of NASA's Mars rovers, VIPER has four wheels, not six. "A problem with six wheels is it creates kind of the equivalent of a track, and so you're forced to drive in a certain way," Andrews says. VIPER's four wheels are entirely independent from each other. Not only can they roll in any direction, they can be turned out, using the rover's shoulder-like joints to crawl out of the soft regolith of the kind scientists believe exists in permanently shadowed moon craters. The wheels themselves are very similar to those on the Mars rovers, but with more paddle-like treads, known as grousers, to carry the robot through fluffy regolith. [...] Together with Astrobotic, Andrews and his team have altered the ramps, and they now include specialized etchings down their lengths. The rover can detect this pattern along the rampway, using cameras in its wheel wells. "By just looking down there," the robot knows where it is, he says. "That's a new touch." Andrews is sure VIPER will be ready for deployment in 2024, however many tweaks are necessary. After all, this method is less complicated than a sky crane, he notes: "Ramps are pretty tried and true."

As an "ambassador" for FTX, football quarterback Tom Brady appeared at the company's conference in the Bahamas, and in TV commercials promoting the exchange as "the most trusted" institution in crypto, remembers the New York Times. And it was all about to go very bad...

"His money was also at stake. As part of an endorsement agreement Brady signed in 2021, FTX had paid him $30 million, a deal that consisted almost entirely of FTX stock, three people with knowledge of the contract said. Brady's wife at the time, supermodel Gisele Bündchen, was paid $18 million in FTX stock, one of the people said." Now FTX is bankrupt, and Bankman-Fried is facing criminal fraud charges. Brady, 45, and Bündchen, 42, have been sued by a group of FTX customers seeking compensation from the celebrities who endorsed the exchange. On top of it all, the terms of the deal would have required the former couple, who divorced last year, to pay taxes on at least some of their now worthless FTX stock, two people familiar with the endorsement deal said. Their situation is the highest-profile example of a humiliating reckoning facing the actors, athletes, and other celebrities who rushed to embrace the easy money and online hype of cryptocurrencies...

But last year's crash ended the celebrity crypto bonanza. In October, the Securities and Exchange Commission ordered Kim Kardashian to pay $1.26 million for failing to make adequate disclosures when she endorsed the EthereumMax crypto token. In December, a lawyer in California sued two crypto companies, MoonPay and Yuga Labs, accusing them of using a "vast network of A-list musicians, athletes and celebrity clients" to mislead investors about digital assets. In March, the S.E.C. charged the actress Lindsay Lohan, the online influencer Jake Paul and musicians including Soulja Boy and Lil Yachty with illegally promoting crypto assets. And in late May, after months of failed attempts, a process server delivered court papers to Shaquille O'Neal, the retired basketball star, who was sued for promoting FTX, according to legal filings. Mr. O'Neal was served while broadcasting from a National Basketball Association playoff game...

Brady has also faced legal trouble. In December, Adam Moskowitz and the law firm Boies Schiller Flexner filed a lawsuit in federal court in Florida accusing him and Bündchen of misleading investors. Among the other defendants are comedian Larry David, NBA star Steph Curry and tennis player Naomi Osaka, all of whom endorsed FTX. "None of these defendants performed any due diligence prior to marketing these FTX products to the public," the lawsuit said.

Nine days ago the U.S. government released a report on the advantages of studying "scientific and societal implications" of "solar radiation modification" (or SRM) to explore its possible "risks and benefits...as a component of climate policy."

The report's executive summary seems to concede the technique would "negate (explicitly offset) all current or future impacts of climate change" — but would also introduce "an additional change" to "the existing, complex climate system, with ramifications which are not now well understood." Or, as Politico puts it, "The White House cautiously endorsed the idea of studying how to block sunlight from hitting Earth's surface as a way to limit global warming in a congressionally mandated report that could help bring efforts once confined to science fiction into the realm of legitimate debate."

But again, the report endorsed the idea of studying it — to further understand the risks, and also help prepare for "possible deployment of SRM by other public or private actors." Politico emphasized how this report "added a degree of skepticism by noting that Congress has ordered the review, and the administration said it does not signal any new policy decisions related to a process that is sometimes referred to — or derided as — geoengineering." "Climate change is already having profound effects on the physical and natural world, and on human well-being, and these effects will only grow as greenhouse gas concentrations increase and warming continues," the report said. "Understanding these impacts is crucial to enable informed decisions around a possible role for SRM in addressing human hardships associated with climate change..."

The White House said that any potential research on solar radiation modification should be undertaken with "appropriate international cooperation."
It's not just the U.S. making official statements. Their report was released "the same week that European Union leaders opened the door to international discussions of solar radiation modification," according to Politico's report: Policymakers in the European Union have signaled a willingness to begin international discussions of whether and how humanity could limit heating from the sun. "Guided by the precautionary principle, the EU will support international efforts to assess comprehensively the risks and uncertainties of climate interventions, including solar radiation modification and promote discussions on a potential international framework for its governance, including research related aspects," the European Parliament and European Council said in a joint communication.
And it also "follows an open letter by more than 60 leading scientists calling for more research," reports Scientific American. They also note a new supercomputer helping climate scientists model the effects of injecting human-made, sun-blocking aerosols into the stratosphere: The machine, named Derecho, began operating this month at the National Center for Atmospheric Research (NCAR) and will allow scientists to run more detailed weather models for research on solar geoengineering, said Kristen Rasmussen, a climate scientist at Colorado State University who is studying how human-made aerosols, which can be used to deflect sunlight, could affect rainfall patterns... "To understand specific impacts on thunderstorms, we require the use of very high-resolution models that can be run for many, many years," Rasmussen said in an interview. "This faster supercomputer will enable more simulations at longer time frames and at higher resolution than we can currently support..."

The National Academies of Sciences, Engineering and Medicine released a report in 2021 urging scientists to study the impacts of geoengineering, which Rasmussen described as a last resort to address climate change.

"We need to be very cautious," she said. "I am not advocating in any way to move forward on any of these types of mitigation efforts. The best thing to do is to stop fossil fuel emissions as much as we can."

Harvard professor Avi Loeb believes he may have found fragments of alien technology from a meteor that landed in the waters off of Papua, New Guinea in 2014. CBS News reports: Loeb and his team just brought the materials back to Harvard for analysis. The U.S. Space Command confirmed with almost near certainty, 99.999%, that the material came from another solar system. The government gave Loeb a 10 km (6.2 mile) radius of where it may have landed. "That is where the fireball took place, and the government detected it from the Department of Defense. It's a very big area, the size of Boston, so we wanted to pin it down," said Loeb. "We figured the distance of the fireball based off the time delay between the arrival of blast wave, the boom of explosion, and the light that arrived quickly."

Their calculations allowed them to chart the potential path of the meteor. Those calculations happened to carve a path right through the same projected 10 km range that came from the U.S. government. Loeb and his crew took a boat called the Silver Star out to the area. The ship took numerous passes along and around the meteor's projected path. Researchers combed the ocean floor by attaching a sled full of magnets to their boat. "We found ten spherules. These are almost perfect spheres, or metallic marbles. When you look at them through a microscope, they look very distinct from the background," explained Loeb, "They have colors of gold, blue, brown, and some of them resemble a miniature of the Earth."

An analysis of the composition showed that the spherules are made of 84% iron, 8% silicon, 4% magnesium, and 2% titanium, plus trace elements. They are sub-millimeter in size. The crew found 50 of them in total. "It has material strength that is tougher than all space rock that were seen before, and catalogued by NASA," added Loeb, "We calculated its speed outside the solar system. It was 60 km per second, faster than 95% of all stars in the vicinity of the sun. The fact that it was made of materials tougher than even iron meteorites, and moving faster than 95% of all stars in the vicinity of the sun, suggested potentially it could be a spacecraft from another civilization or some technological gadget." He likens the situation to any of the Voyager spacecrafts launched by NASA.

"Black Swan events are hard-to-predict rare events that can significantly alter the course of our lives," begins a 2021 paper by a computer science professor at the University of California.

Now the Washington Post revisits that exploration of the possibility that "magnetic fields unleashed by a solar superstorm rip through Earth's magnetosphere, sending currents surging through human infrastructure." A widespread internet outage could, indeed, be brought on by a strong solar storm hitting Earth — a rare but very real event that has not yet happened in the digital age, experts say. When a solar storm known as the Carrington Event struck in 1859, telegraph lines sparked, operators were electrocuted and the northern lights descended to latitudes as low as Jamaica. A 1989 solar storm took out the Quebec power grid for hours. And in 2012, a storm just missed Earth.

As the sun, which has roughly 11-year cycles, enters a particularly active period known as the "solar maximum" in 2025, some are worried our interconnected world is not prepared.

Sangeetha Abdu Jyothi, a computer science professor at University of California at Irvine whose paper "Solar Superstorms: Planning for an Internet Apocalypse" has played a role in popularizing the term, started thinking about internet resilience when the coronavirus began to spread, and she realized how unprepared we were for a pandemic. Research on widespread internet failure was scant. "We've never experienced one of the extreme case events, and we don't know how our infrastructure would respond to it," Jyothi said. "Our failure testing doesn't even include such scenarios."

She notes that a severe solar storm is likely to affect large-scale infrastructure such as submarine communication cables, which could interrupt long-distance connectivity. If you have not lost power, you might have access to, say, a government website hosted locally, but reaching bigger websites, which could have data stored all over the place, might not be possible. The northern latitudes are also especially vulnerable to solar storms, and that's where a lot of internet infrastructure is concentrated. "This is not taken into account in our infrastructure deployment today at all," she said. Such outages could last for months, depending on the scale and how long it takes to repair the damage. The economic impact of just one day of lost connectivity in the United States alone is estimated to be more than $11 billion, according to the internet watcher NetBlocks.

Still, Jyothi says she has felt bad for using the term "internet apocalypse" in her paper. There's not much ordinary people can do to prepare for such a phenomenon; it falls on governments and companies. And the paper "just got too much attention," she said.
"Astrophysicists estimate the likelihood of a solar storm of sufficient strength to cause catastrophic disruption occurring within the next decade to be 1.6 to 12%," the paper concludes. (It also notes that the U.S. has a higher risk for a disconnection than Asia.)

"Paying attention to this threat and planning defenses against it, like our preliminary effort in this paper, is critical for the long-term resilience of the Internet."

"The European Space Agency's Euclid space telescope launched at 11:12 a.m. ET Saturday," reports CNN, "aboard a SpaceX Falcon 9 rocket from Florida's Cape Canaveral Space Force Station.

CNN is calling it "a mission designed to unravel some of the greatest mysteries of the universe." The 1.2-meter-diameter (4-foot-diameter) telescope has set off on a monthlong journey to its orbital destination of the sun-Earth Lagrange point L2, which is nearly 1 million miles (1.6 million kilometers) away from Earth and also home to NASA's James Webb Space Telescope... After arriving at orbit, Euclid will spend two months testing and calibrating its instruments — a visible light camera and a near-infrared camera/spectrometer — before surveying one-third of the sky for the next six years. Euclid's primary goal is to observe the "dark side" of the universe, including dark matter and dark energy. While dark matter has never actually been detected, it is believed to make up 85% of the total matter in the universe. Meanwhile, dark energy is a mysterious force thought to play a role in the accelerating expansion of the universe.

In the 1920s, astronomers Georges Lemaître and Edwin Hubble discovered that the universe has been expanding since its birth 13.8 billion years ago. But research that began in the 1990s has shown that something sparked an acceleration of the universe's expansion about 6 billion years ago, and the cause remains a mystery. Unlocking the true nature of dark energy and dark matter could help astronomers understand what the universe is made of, how its expansion has changed over time, and if there is more to understanding gravity than meets the eye... Euclid is designed to create the largest and most accurate three-dimensional map of the universe, observing billions of galaxies that stretch 10 billion light-years away to reveal how matter may have been stretched and pulled apart by dark energy over time. These observations will effectively allow Euclid to see how the universe has evolved over the past 10 billion years...

The telescope's image quality will be four times sharper than those of ground-based sky surveys. Euclid's wide perspective can also record data from a part of the sky 100 times bigger than what Webb's camera can capture. During its observations, the telescope will create a catalog of 1.5 billion galaxies and the stars within them, creating a treasure trove of data for astronomers that includes each galaxy's shape, mass and number of stars created per year. Euclid's ability to see in near-infrared light could also reveal previously unseen objects in our own Milky Way galaxy, such as brown dwarfs and ultra-cool stars.

In May 2027, Euclid will be joined in orbit by the Nancy Grace Roman Telescope. The two missions will overlap in their study of cosmic acceleration as they both create three-dimensional maps of the universe...Roman will study one-twentieth of the sky in infrared light, allowing for much more depth and precision. The Roman telescope will peer back to when the universe was just 2 billion years old, picking out fainter galaxies than Euclid can see.
CNN points out that "While primarily an ESA mission, the telescope includes contributions from NASA and more than 2,000 scientists across 13 European countries, the United States, Canada and Japan."

And they also note this statement from Jason Rhodes, a senior research scientist at NASA's Jet Propulsion Laboratory. "With these upcoming telescopes, we will measure dark energy in different ways and with far more precision than previously achievable, opening up a new era of exploration into this mystery."

From NASA's announcement: Scientists are unsure whether the universe's accelerated expansion is caused by an additional energy component, or whether it signals that our understanding of gravity needs to be changed in some way. Astronomers will use Roman and Euclid to test both theories at the same time, and scientists expect both missions to uncover important information about the underlying workings of the universe...

Less concentrated mass, like clumps of dark matter, can create more subtle effects. By studying these smaller distortions, Roman and Euclid will each create a 3D dark matter map... Tallying up the universe's dark matter across cosmic time will help scientists better understand the push-and-pull feeding into cosmic acceleration.
SpaceX tweeted footage of the telescope's takeoff, and the successful landing of their Falcon 9's first stage on a droneship called A Shortfall of Gravitas.

The exoplanet 8 Ursae Minoris b should not exist. It orbits its host star at just half the Earth-Sun distance, and by all indications, the star should have gone through a phase in which it bloated up enough to engulf that entire orbit and then some. Yet 8 Ursae Minoris b definitely appears to exist. From a report: There is a handful of potential explanations, none of them especially likely. The people who discovered the planet are suggesting that it survived because its host star got distracted by swallowing a white dwarf instead. 8 Ursae Minoris b was discovered using the radial velocity method, which watches for changes in a star's light that occur as planets tug the star back and forth as they orbit. This tugging creates a blue shift in the light when the planet is pulling the star in the direction of Earth and a red shift when the star is pulled away from Earth.

But the planet is unlikely to be tugging the star directly toward Earth, so we tend to only measure the component of the star's motion that's in our direction. We'd see the same apparent motion of the star if a light planet's orbit was oriented directly toward Earth or a very heavy planet that has a relatively skewed orbit. At best, radial velocity measurements give us an estimate of the minimum mass of the planet; it could potentially be larger. So we know that, at minimum, 8 Ursae Minoris b is a big planet, at over 1.6 times the mass of Jupiter. It also resides close to its host star, completing a full orbit in just 93 days. That places it at half an Astronomical Unit (AU, the typical distance between Earth and the Sun) from its star.

Observations also hint at a second body orbiting the star at least five AU. The evidence for that is weak given the current data, but it may have a significant role in shaping the system. On its own, there's nothing especially unusual about the 8 Ursae Minoris exosolar system. Where things get weird is when you consider the star at the center of the system.

As part of a series of articles on smart homes, the Verge visits an energy-efficient home in the southern California desert that's "part of California's first planned smart, solar-powered residential microgrid community." A surprisingly small number of solar panels on the roof soak up the sun in the desert landscape... funneling power into the tightly designed building envelope. Here, a 13-kilowatt hour home battery sits beside a smart load panel that controls every electrical appliance in the home, from the hybrid electric heat-pump water heater and high-efficiency heat pump HVAC system — both Wi-Fi enabled to share data — to the light switches, EnergyStar fridge, and energy-efficient induction cooktop. Using software algorithms, the Schneider load center intelligently determines where to best draw power from — the SunPower solar panels, the battery, or the grid. It then makes recommendations the Conriques can use to set automations that change power sources or reduce energy use when prices and demand spike...

The 43 new residences in KB Home-built Shadow Mountain, which launched in November 2022, and the 176 more planned as part of two communities, Durango and Oak Shade, are all-electric, solar-powered smart homes. By next year they will be connected to a 2.3 megawatt-hour community battery, sending any excess energy their panels generate to the common power source and creating a community microgrid. When the power goes down, the microgrid will kick in, isolating all 219 homes from the grid and keeping their essential functions up and running. The homes will draw first from their own battery (and potentially their EV) and then from the community battery. "When the system hits a potential steady state, they can ride a power outage for days, if not in perpetuity, with proper solar production," explains Brad Wills of Schneider Electric, manufacturers of the home's smart load panel, the community's microgrid components, and the software that runs the system...

Developed as a partnership between SunPower, KB Home, University of California, Irvine, Schneider Electric, Southern California Edison, Kia America, and the US Department of Energy, Shadow Mountain is designed to be a blueprint for how we can build better, smarter communities in the future... A recent DOE study estimated that by 2030, grid-interactive efficient buildings like those at Shadow Mountain could save up to $18 billion per year in power system costs and cut 80 million tons of carbon emissions annually.
The article describes how the community helps the larger power grid:

• They can send electricity back into the grid during periods of peak demand.

• The local power company now also has the option to "island" the entire community off the grid in times of high demand.

• The community "is also trialing high-output vehicle-to-home and vehicle-to-grid functions."

An anonymous reader quotes this report from the Washington Post: In a new study released in Nature this week, researchers state that Earth formed within just 3 million years. That's notably faster than previous estimates placing the timeline up to 100 million years.... "We can also predict that if other planets formed ... by the same mechanism, then the ingredients required for life such as water, should be present on other planets and other systems, so there's a greater chance that we have water worlds elsewhere in the galaxy," said Isaac Onyett, lead author of the study and Ph.D. candidate at the University of Copenhagen.

The authors assert that this rapid genesis occurred through a theory called pebble accretion. The general idea, according to co-author and cosmochemist Martin Bizzarro, is that planets are born in a disk of dust and gas. When they reach a certain size, they rapidly attract those pebbles like a vacuum cleaner. Some of those pebbles are icy and could provide a water supply to Earth, thought of as pebble snow. This would have led to an early version of our planet, known as proto-Earth, that is approximately half the size of our present-day planet. (Our current rendition of Earth likely formed after a larger impact about 100 million years later, which also led to the formation of our moon....)

The team determined the time scale of Earth's formation by looking at silicon isotopes from more than 60 meteorites and planetary bodies in the vicinity of Earth, which represent the rubble leftover after planet formation... By analyzing the silicon compositions in samples of different ages, Onyett said they can piece together a time sequence of what was happening in the disk of dust before Earth formed. They found that, as the samples increased in age, the composition of the asteroids changed toward the composition of the cosmic dust that was being accumulated by Earth. "That's very strong evidence that this dust was also being swept up as it was drifting inwards towards the Sun," said Onyett. "It would have been swept up by Earth as it was growing by accretion."

Birger Schmitz, an astrogeologist at Lund University who was not involved in the research, said these results are "very compelling" and could shift how we think about our planet's formation... Most importantly, he said the results show there is nothing special about our water-carrying planet. "It is just a very ordinary planet in our galaxy. This is important in our attempts to understand how common higher forms of life are in the universe."
While scientists agree pebble accretion does explain the formation of gas-giant planets like Jupiter and Saturn, some still argue that rocky planets like Earth were instead formed through larger and larger asteroid collisions...

An anonymous reader quotes a report from Scientific American: It could be a new world record, although no one involved wants to talk about it. In the south of France, a collaboration among 35 countries has been birthing one of the largest and most ambitious scientific experiments ever conceived: the giant fusion power machine known as the International Thermonuclear Experimental Reactor (ITER). But the only record ITER seems certain to set doesn't involve "burning" plasma at temperatures 10 times higher than that of the sun's core, keeping this "artificial star" ablaze and generating net energy for seconds at a time or any of fusion energy's other spectacular and myriad prerequisites. Instead ITER is on the verge of a record-setting disaster as accumulated schedule slips and budget overruns threaten to make it the most delayed -- and most cost-inflated -- science project in history.

The ITER project formally began in 2006, when its international partners agreed to fund an estimated [$6.3 billion], 10-year plan that would have seen ITER come online in 2016. The most recent official cost estimate stands at more than [$22 billion], with ITER nominally turning on scarcely two years from now. Documents recently obtained via a lawsuit, however, imply that these figures are woefully outdated: ITER is not just facing several years' worth of additional delays but also a growing internal recognition that the project's remaining technical challenges are poised to send budgets spiraling even further out of control and successful operation ever further into the future.

The documents, drafted a year ago for a private meeting of the ITER Council, ITER's governing body, show that at the time, the project was bracing for a three-year delay -- a doubling of internal estimates prepared just six months earlier. And in the year since those documents were written, the already grim news out of ITER has unfortunately only gotten worse. Yet no one within the ITER Organization has been able to provide estimates of the additional delays, much less the extra expenses expected to result from them. Nor has anyone at the U.S. Department of Energy, which is in charge of the nation's contributions to ITER, been able to do so. When contacted for this story, DOE officials did not respond to any questions by the time of publication.

Owen Gingerich, a renowned astronomer and historian of science, has passed away at the age of 93. Gingerich dedicated years to tracking down 600 copies of Nicolaus Copernicus's influential book "De Revolutionibus Orbium Coelestium Libri Sex" and was known for his passion for astronomy, often dressing up as a 16th-century scholar for lectures. He believed in the compatibility of religion and science and explored this theme in his books "God's Universe" and "God's Planet." The New York Times reports: Professor Gingerich, who lived in Cambridge, Mass., and taught at Harvard for many years, was a lively lecturer and writer. During his decades of teaching astronomy and the history of science, he would sometimes dress as a 16th-century Latin-speaking scholar for his classroom presentations, or convey a point of physics with a memorable demonstration; for instance, The Boston Globe related in 2004, he "routinely shot himself out of the room on the power of a fire extinguisher to prove one of Newton's laws." He was nothing if not enthusiastic about the sciences, especially astronomy. One year at Harvard, when his signature course, "The Astronomical Perspective," wasn't filling up as fast as he would have liked, he hired a plane to fly a banner over the campus that read: "Sci A-17. M, W, F. Try it!"

Professor Gingerich's doggedness was on full display in his long pursuit of copies of Copernicus's "De Revolutionibus Orbium Coelestium Libri Sex" ("Six Books on the Revolutions of the Heavenly Spheres"), first published in 1543, the year Copernicus died. That book laid out the thesis that Earth revolved around the sun, rather than the other way around, a profound challenge to scientific knowledge and religious belief in that era. The writer Arthur Koestler had contended in 1959 that the Copernicus book was not read in its time, and Professor Gingerich set out to determine whether that was true. In 1970 he happened on a copy of "De Revolutionibus" that was heavily annotated in the library of the Royal Observatory in Edinburgh, suggesting that at least one person had read it closely. A quest was born. Thirty years and hundreds of thousands of miles later, Professor Gingerich had examined some 600 Renaissance-era copies of "De Revolutionibus" all over the world and had developed a detailed picture not only of how thoroughly the work was read in its time, but also of how word of its theories spread and evolved. He documented all this in "The Book Nobody Read: Chasing the Revolutions of Nicolaus Copernicus" (2004). John Noble Wilford, reviewing it in The New York Times, called "The Book Nobody Read" "a fascinating story of a scholar as sleuth."

Professor Gingerich was raised a Mennonite and was a student at Goshen College, a Mennonite institution in Indiana, studying chemistry but thinking of astronomy, when, he later recalled, a professor there gave him pivotal advice: "If you feel a calling to pursue astronomy, you should go for it. We can't let the atheists take over any field." He took the counsel, and throughout his career he often wrote or spoke about his belief that religion and science need not be at odds. He explored that theme in the books "God's Universe" (2006) and "God's Planet" (2014). He was not a biblical literalist; he had no use for those who ignored science and proclaimed the Bible's creation story historical fact. Yet, as he put it in "God's Universe," he was "personally persuaded that a superintelligent Creator exists beyond and within the cosmos." [...] Professor Gingerich, who was senior astronomer emeritus at the Smithsonian Astrophysical Observatory, wrote countless articles over his career in addition to his books. In one for Science and Technology News in 2005, he talked about the divide between theories of atheistic evolution and theistic evolution. "Frankly it lies beyond science to prove the matter one way or the other," he wrote. "Science will not collapse if some practitioners are convinced that occasionally there has been creative input in the long chain of being." In 2006, Gingerich was mentioned in a Slashdot story about geologists' reacting to the new definition of "Pluton." He was quoted as saying that he was only peripherally aware of the definition, and because it didn't show up on MS Word's spell check, he didn't think it was that important."

"Gingerich lead a committee of the International Astronomical Union charged with recommending whether Pluto should remain a planet," notes the New York Times. "His panel recommended that it should, but the full membership rejected that idea and instead made Pluto a 'dwarf planet.' That decision left Professor Gingerich somehwat dismayed."

The New York Times defines the solar wind as "a million-miles-per-hour stream of electrons, protons and other charged particles rushing outward into the solar system."

Now CNN reports that the Parker Solar Probe "has uncovered the source of solar wind." As the probe came within about 13 million miles (20.9 million kilometers) of the sun, its instruments detected fine structures of the solar wind where it generates near the photosphere, or the solar surface, and captured ephemeral details that disappear once the wind is blasted from the corona...A study detailing the solar findings was published Wednesday in the journal Nature...

There are two types of this wind. The faster solar wind streams from holes in the corona at the sun's poles at a peak speed of 497 miles per second (800 kilometers per second)... The spacecraft's data revealed that the coronal holes act like showerheads, where jets appear on the sun's surface in the form of bright spots, marking where the magnetic field passes in and out of the photosphere. As magnetic fields pass each other, moving in opposite directions within these funnels on the solar surface, they break and reconnect, which sends charged particles flying out of the sun.

"The photosphere is covered by convection cells, like in a boiling pot of water, and the larger scale convection flow is called supergranulation," said lead study author Stuart D. Bale, a professor of physics at the University of California, Berkeley, in a statement. "Where these supergranulation cells meet and go downward, they drag the magnetic field in their path into this downward kind of funnel. The magnetic field becomes very intensified there because it's just jammed. It's kind of a scoop of magnetic field going down into a drain. And the spatial separation of those little drains, those funnels, is what we're seeing now with solar probe data."

Parker Solar Probe detected highly energetic particles traveling between 10 and 100 times faster than the solar wind, leading the researchers to believe that the fast solar wind is created by the reconnection of magnetic fields. "The big conclusion is that it's magnetic reconnection within these funnel structures that's providing the energy source of the fast solar wind," Bale said. "It doesn't just come from everywhere in a coronal hole, it's substructured within coronal holes to these supergranulation cells. It comes from these little bundles of magnetic energy that are associated with the convection flows."

Artificial photosynthesis, inspired by the natural process that enables plants to convert sunlight, water, and carbon dioxide into oxygen and energy, could be crucial for space exploration and colonization. By using semiconductor materials and metallic catalysts, these devices could efficiently produce oxygen and recycle carbon dioxide, reducing reliance on heavy and unreliable systems currently used on the International Space Station. ScienceAlert reports: As my colleagues and I have investigated in a new paper, published in Nature Communications, recent advances in making artificial photosynthesis may well be key to surviving and thriving away from Earth. [...] We produced a theoretical framework to analyze and predict the performance of such integrated "artificial photosynthesis" devices for applications on Moon and Mars. Instead of chlorophyll, which is responsible for light absorption in plants and algae, these devices use semiconductor materials which can be coated directly with simple metallic catalysts supporting the desired chemical reaction. Our analysis shows that these devices would indeed be viable to complement existing life support technologies, such as the oxygen generator assembly employed on the ISS. This is particularly the case when combined with devices which concentrate solar energy in order to power the reactions (essentially large mirrors which focus the incoming sunlight).

There are other approaches too. For example, we can produce oxygen directly from lunar soil (regolith). But this requires high temperatures to work. Artificial photosynthesis devices, on the other hand, could operate at room temperature at pressures found on Mars and the Moon. That means they could be used directly in habitats and using water as the main resource. This is particularly interesting given the stipulated presence of ice water in the lunar Shackleton crater, which is an anticipated landing site in future lunar missions.

On Mars, the atmosphere composes of nearly 96% carbon dioxide - seemingly ideal for an artificial photosynthesis device. But the light intensity on the red planet is weaker than on Earth due to the larger distance from the Sun. So would this pose a problem? We actually calculated the sunlight intensity available on Mars. We showed that we can indeed use these devices there, although solar mirrors become even more important. [...] The returns would be huge. For example, we could actually create artificial atmospheres in space and produce chemicals we require on long-term missions, such as fertilizers, polymers, or pharmaceuticals. Additionally, the insights we gain from designing and fabricating these devices could help us meet the green energy challenge on Earth.

Swiss start-up Sun-Ways has developed a concept to install solar panels between train tracks, using a specially built train to "unroll" the panels during the night when fewer trains are running. Fast Company reports: As wild as it all sound, Sun-Ways actually has two competitors. Greenrail and Bankset Energy, respectively located in Italy and England, are already testing similar concepts. But Sun-Ways stands out in two ways. For one, it uses standard-size panels, whereas the others use smaller panels that are placed on top of crossties. And unlike its competitors, Sun-ways doesn't require manual installation. It has a train for that!

Sun-ways is putting this idea to the test during a $560,000 pilot project in Western Switzerland. The pilot, which is slated for this summer, will trial a version of the mechanism using a regular train that's been retrofitted for the occasion. Running on a 140-foot stretch near the city of Neuchatel, the train will install about 60 solar panels, turning the gap between train tracks into a reflective black ribbon.

For now, 100% of the electricity generated by the solar panels will go straight to the grid to power nearby households. But eventually, the team is planning to use some of that electricity to power the very trains that run above the panels. According to Danichert, 5,000 kilometers of "solar rails" (which is the current length of the entire Swiss railroad network) can generate 1 gigawatt of energy per year, or enough energy to power about 750,000 homes. Considering there are over 1 million kilometers of railway tracks worldwide, the potential could be huge, even if the system can't be installed on every one of those tracks. But most importantly, it wouldn't take up any space from farmland or forests, and it wouldn't ruin any landscapes.

The Mars helicopter 'Ingenuity' recently completed its 47th, 48th, and 49th flight, NASA reports on the blog for its Mars rover 'Perseverance'. That rover is making a "long ascent" up the delta in Mars' Jezero crater, "an area where scientists surmise that, billions of years ago, a river once flowed into a lake.

On its 47th flight, Ingenuity attempted "tactical and scientific scouting" for the rover, but "just narrowly missing the main area of interest." But then... Ingenuity's 48th flight produced a treasure trove of aerial images showing the exact area of interest at a resolution several orders of magnitude better than anything prior. All of these images were downlinked to Earth and provided to rover planners and scientists a full two weeks before the rover would reach this area... [T]he team chose to send the helicopter farther up the delta rather than perform additional scouting flights in the region... The Guidance Navigation and Control team once again managed to push the flight envelope with a 16-meter vertical popup at the end of the flight. At the peak, Ingenuity snapped the highest suborbital picture taken of the Martian surface since landing...

That downlink was the last time the team would hear from the helicopter for an agonizingly long time. Eager to continue up the delta, the team tried and failed to uplink the instructions for Flight 50 several times. Sol after sol, the helicopter remained elusive. Each time, the downlinked telemetry from the Helicopter Base Station (HBS) on the rover would come back showing no radio sign of the helicopter... When the rover emerged from the communications shadow on its way to Foel Drygarn and the helicopter was still nowhere to be found, the situation began to generate some unease... In more than 700 sols operating the helicopter on Mars, not once had we ever experienced a total radio blackout. Even in the worst communications environments, we had always seen some indication of activity...

Finally, on Sol 761, nearly a week after our first missed check-in, our communications team observed a single, lonely radio ACK (radio acknowledgement) at 9:44 LMST (Local Mean Solar Time), exactly the time when we'd expect to see the helicopter wakeup. Another single ACK at the same time on Sol 762 confirmed that the helicopter was indeed alive, which came as a welcome relief for the team. Ultimately, this first-of-its-kind communications blackout was a result of two factors. First, the topology between the rover and the helicopter was very challenging for the radio used by Ingenuity. In addition to the aforementioned communications shadow, a moderate ridge located just to the southeast of the Flight 49 landing site separated the helicopter from the rover's operational area. The impact of this ridge would only abate once the rover had gotten uncomfortably close to the helicopter. Second, the HBS antenna is located on the right side of the rover, low enough to the deck to see significant occlusion effects from various part of the rover...

Relying on the helicopter's onboard preflight checks to ensure vehicle safety and banking on solid communications from the rover's imminent proximity, the team uplinked the flight plan. As commanded, Ingenuity woke up and executed its 50th flight on the red planet, covering over 300 meters and setting a new altitude record of 18 m.

The rover had closed to a mere 80 meters by the time the helicopter lifted off in the Martian afternoon Sun.
And Flight 51 happened 9 days later...

An anonymous reader shared this report from the Washington Post: Nearly any material can be used to turn the energy in air humidity into electricity, scientists found in a discovery that could lead to continuously producing clean energy with little pollution. The research, published in a paper in Advanced Materials, builds on 2020 work that first showed energy could be pulled from the moisture in the air using material harvested from bacteria. The new study shows nearly any material can be used, like wood or silicon, as long as it can be smashed into small particles and remade with microscopic pores...

The air-powered generator, known as an "Air-gen," would offer continuous clean electricity since it uses the energy from humidity, which is always present, rather than depending on the sun or wind... The device, the size of a fingernail and thinner than a single hair, is dotted with tiny holes known as nanopores. The holes have a diameter smaller than 100 nanometers, or less than a thousandth of the width of a strand of human hair. The tiny holes allow the water in the air to pass through in a way that would create a charge imbalance in the upper and lower parts of the device, effectively creating a battery that runs continuously. "We are opening up a wide door for harvesting clean electricity from thin air," Xiaomeng Liu, another author and a UMass engineering graduate student, said in a statement.

While one prototype only produces a small amount of energy — almost enough to power a dot of light on a big screen — because of its size, Yao said Air-gens can be stacked on top of each other, potentially with spaces of air in between. Storing the electricity is a separate issue, he added. Yao estimated that roughly 1 billion Air-gens, stacked to be roughly the size of a refrigerator, could produce a kilowatt and partly power a home in ideal conditions. The team hopes to lower both the number of devices needed and the space they take up by making the tool more efficient...

It could be embedded in wall paint in a home, made at a larger scale in unused space in a city or littered throughout an office's hard-to-get-to spaces. And because it can use nearly any material, it could extract less from the environment than other renewable forms of energy. "The entire earth is covered with a thick layer of humidity," Yao said. "It's an enormous source of clean energy. This is just the beginning in making use of that."
More information from the Boston Globe.

Thanks to long-time Slashdot reader SpzToid for sharing the article.