United Launch Alliance has been developing a heavy-lift space vehicle since 2014 (with investment from the U.S. military) called the Vulcan Centaur.

So CNN reports that the ashes of the late Star Trek actress Nichelle Nichols "will head to deep space on a Vulcan rocket." Nichols' cremated remains will be aboard the first Celestis Voyager Memorial Spaceflight, which will launch from Cape Canaveral, Florida. Celestis, Inc., is a private company that conducts memorial spaceflights. Among the remains also aboard the flight will be the ashes of "Star Trek" creator Gene Roddenberry; his wife, Majel Barrett-Roddenberry, who played various roles in the show and films; and James Doohan, who played Montgomery "Scotty" Scott in the films and TV series....

The spaceflight will travel beyond NASA's James Webb Space Telescope and into interplanetary deep space. In addition to cremated remains, capsules onboard will also carry complete human genome DNA samples from willing participants.

People can participate in the flight — by having DNA or loved ones' remains in a spaceflight container — for a price starting at $12,500, and reservations close August 31. (Celestis offers other voyages that don't travel as far, but can cost less than $5,000.) Ahead of the flight's liftoff, Celestis will host a three-day event with mission briefings, an astronaut-hosted dinner, launch site tours, an on-site memorial service and launch viewing. All events will be shown via webcast, according to Celestis.
An announcement on the flight's site invites fans of Nichelle Nichols to "share your own story about how she inspired you and it will be sent into deep space aboard the first Celestis Voyager Memorial Spaceflight — the Enterprise Flight, launching later in 2022."

Every Friday Politico interviews someone about "The Future in Five Questions". This week they interviewed Neal Stephenson (who they describe as "the sci-fi author who coined the term 'metaverse' and now a Web3 entrepreneur in his own right.")

Stephenson began by sharing his thoughts on a big idea that's underrated. Neal Stephenson: Desalination. It's an incredibly obvious, kind of simple process. Nothing is more basic than having water to drink, so it's kind of hiding in plain sight, but coupled with cheap energy from photovoltaics it's going to make big changes in the world. When you look at how much water, or a lack thereof, has shaped where people live and how people make food, the notion that we might be able to engineer ways to get fresh water in a new way could be revolutionary.

What's a technology you think is overhyped?

Stephenson: I'm going to go with an oldie: rockets. It's just a historical accident that chemical rockets became our only way of putting stuff into space, and if we had started at a different time we would have ended up doing something that works better.

One alternative would be beaming energy from the ground to vehicles, using lasers or microwaves. That seems like a doable project right now. There's nuclear propulsion, which I think is probably never going to happen at scale, because it's politically impossible, but even something as simple as constructing a very tall building or a tall tower and using that as a launch platform, or as a way to accelerate things up upward, could really change the economics of spaceflight.
Stephenson also says the book that most shaped his conception of the future was Robert Heinlein's 1958 novel Have Spacesuit, Will Travel. And the biggest surprise of 2022 was Ukraine's strong response after Russia's invasion. "Most people who are paying attention have understood that drones and other new technologies are going to change the way wars get fought, but we're seeing it unfold and mutate in real time in Ukraine.

"These guys are taking old Cold War grenades and disassembling them, and putting on homemade fuses and attaching 3D printed fins and dropping them out of consumer-grade drones, to a significant effect on the battlefield...."

In 2004 Neal Stephenson answered questions from Slashdot's readers.

"At the onset of the outbreak, scientists thought they knew when and how the monkeypox virus was spread, what the disease looked like and who was most vulnerable," remembers the New York Times.

"The 47,000 cases identified worldwide have upended many of those expectations." Some had headaches or depression, confusion and seizures. Others had severe eye infections or inflammation of the heart muscle. At least three of the six deaths reported so far were linked to encephalitis, an inflammation of the brain. "We really are seeing a very, very wide range of presentation," said Dr. Boghuma Titanji, an infectious disease physician at a clinic in Atlanta that serves people living with H.I.V. Scientists now know that the monkeypox virus lurks in saliva, semen and other bodily fluids, sometimes for weeks after recovery. The virus has always been known to spread through close contact, but many researchers suspect the infection may also be transmitted through sex itself....

"It's no longer correct to say it can't be transmitted asymptomatically," said Dr. Chloe Orkin, an infectious disease physician at Queen Mary University of London. "I think that it means that our working model of how it's spread is incorrect."

Early in the outbreak, [America's Centers for Disease Control] said that "people who do not have monkeypox symptoms cannot spread the virus to others." The agency changed that phrasing on July 29 to say that "scientists are still researching" the possibility of asymptomatic transmission. In a statement to The New York Times, an agency spokeswoman acknowledged recent evidence that asymptomatic cases were possible but said that it was still uncertain whether people without symptoms could spread the virus and that more research was needed.

A small study on the therapeutic effects of using psychedelics to treat alcohol use disorder found that just two doses of psilocybin magic mushrooms paired with psychotherapy led to an 83 percent decline in heavy drinking among the participants. Those given a placebo reduced their alcohol intake by 51 percent. From a report: By the end of the eight-month trial, nearly half of those who received psilocybin had stopped drinking entirely compared with about a quarter of those given the placebo, according to the researchers. The study, published Wednesday in JAMA Psychiatry, is the latest in a cascade of new research exploring the benefits of mind-altering compounds to treat a range of mental health problems, from depression, anxiety and post-traumatic stress disorder to the existential dread experienced by the terminally ill.

Although most psychedelics remain illegal under federal law, the Food and Drug Administration is weighing potential therapeutic uses for compounds like psilocybin, LSD and MDMA, the drug better known as Ecstasy. Dr. Michael Bogenschutz, director at NYU Langone Center for Psychedelic Medicine and the study's lead investigator, said the findings offered hope for the nearly 15 million Americans who struggle with excessive drinking -- roughly 5 percent of all adults. Excessive alcohol use kills an estimated 140,000 people each year.

China is using two massive drones to seed rainclouds in Sichuan province to try to end a devastating drought that has choked power output and disrupted supply chains of global giants like Apple and Tesla. From a report: The China Meteorological Administration launched drones in northern and southeastern Sichuan on Thursday morning, and the aircraft will eventually cover an area of 6,000 square kilometers in operations lasting through Monday, state-owned CCTV reported. Seeding works by dropping an ice-forming agent like silver iodide into a cloud that already contains ample moisture. Rain droplets gather around the agent, gaining weight until they begin to fall. China has a long history of using the technology to water crop fields, cool blistering cities and make sure skies are clear for events like the Olympics.

Academic journals will have to provide immediate access to papers that are publicly funded, providing a big win for advocates of open research and ending a policy that had allowed publishers to keep publications behind a paywall for a year, according to a White House directive. The New York Times: In laying out the new policy, which is set to be fully in place by the start of 2026, the Office of Science and Technology Policy said that the guidance had the potential to save lives and benefit the public on several key priorities -- from cancer breakthroughs to clean-energy technology. "The American people fund tens of billions of dollars of cutting-edge research annually," Dr. Alondra Nelson, the head of the office, said in a statement. "There should be no delay or barrier between the American public and the returns on their investments in research."

Advocates for open-research access, like Greg Tananbaum, the director of the Open Research Funders Group, called the guidance "transformational" for researchers and the broader public alike. He said it built off a 2013 memorandum that was also important in expanding the public's access to research but fell short in some areas. The 2013 guidance applied to federal agencies with research and development expenditures of $100 million or more, about 20 of the largest agencies like the National Science Foundation and the National Institutes of Health. The guidance announced on Thursday covers nearly all federal bodies, a major expansion that includes about 400 or more entities, several experts said. The directive also requires that publications be made available in machine-readable formats to ensure use and reuse, a component that open-access advocates hailed as a game-changer for accessibility.

The vaccine manufacturer Moderna sued Pfizer and BioNTech on Friday, claiming that its rivals' Covid-19 shot violates its patents protecting its groundbreaking technology. NPR reports: The lawsuit alleges the two companies used certain key features of technology Moderna developed to make their COVID-19 vaccine. It argues that Pfizer and BioNtech's vaccine infringes patents Moderna filed between 2010 and 2016 for its messenger RNA or mRNA technology.

All three companies' COVID-19 vaccines used mRNA technology which is a new way to make vaccines. In the past, vaccines were generally made using parts of a virus, or inactivated virus, to stimulate an immune response. With mRNA technology, the vaccine uses messenger RNA created in a lab to send genetic instructions that teach our cells to make a protein or part of a protein that triggers an immune response. In October 2020, Moderna pledged not to enforce its COVID-19 related patents while the pandemic was ongoing, according to a statement from the company. In March this year, it said it will stick to its commitment not to enforce its COVID-19 related patents in low and middle-income countries, but expects rival companies like Pfizer to respect its intellectual property.

Bruce66423 shares a report from The Telegraph: Academics from Japan have found that ethanol helps make plants more drought-resistant (Warning: source paywalled; alternative source) and better able to survive an extended bout of dry weather. Experiments found that getting plants drunk helps crops flourish while sober plants become shrunken and disheveled. Plants lose water through their leaves when pores called stomata open to allow it to escape, but ethanol helps keep these closed, the scientists found, thus improving water retention. Genetic analysis of the plant also showed that plants switch on drought-fighting genes when ethanol is picked up by the roots. This not only stopped the loss of water through the vent-like stomata but also saw the plant activate a process where it actually uses the alcohol for fuel.

Photosynthesis, the vital process that plants use to make energy from sunlight, needs water, but in the study, published in the journal Plant and Cell Physiology, the team found the plant can do this with ethanol instead in times of drought to further conserve dwindling supplies while also still making energy. This metabolizing of alcohol also means that shops would not be stocked with alcohol-infused foods if an alcohol-aided plant was harvested as it would have long ago been turned into energy by the plant. "There are some interesting questions to ask about WHY this pathway exists in plants," adds Slashdot reader Bruce66423. "The article doesn't talk about the concentration needed."

sciencehabit quotes a report from Science Magazine: Astronomers have found carbon dioxide (CO2) in the atmosphere of a Saturn-size planet 700 light-years away -- the first unambiguous detection of the gas in a planet beyond the Solar System. The discovery, made by the James Webb Space Telescope, provides clues to how the planet formed. The result also shows just how quickly Webb may identify a spate of other gases, such as methane and ammonia, which could hint at a planet's potential habitability for life. [...] For its first exoplanet observations, astronomers targeted the hot gas giant WASP-39b, which orbits its star every 4 days in an orbit much tighter than Mercury's. The first data were taken on 10 July and the team started work on them a few days later. Even in raw data based on a single transit across the star, the spectral dip of CO2 "sticks out like a sore thumb," says Webb team member Jacob Bean of the University of Chicago. There have been some tentative detections of the gas before, he says, but none of them held up under scrutiny. Webb's spectrum was "the right size, the right shape, and in the right position," Bean says. "CO2 just popped out."

Finding CO2 is valuable because it is a clue to a planet's "metallicity" -- the proportion of elements heavier than helium in its makeup. Hydrogen and helium produced in the big bang are the starting materials for all the visible matter in the universe, but anything heavier was forged later in stars. Researchers believe a good supply of heavy elements is crucial for creating giant planets. When planets form out of a disk of material around a new star, heavier elements form solid grains and pebbles that glom together into a solid core that eventually is massive enough to pull in gases with its own gravity and grow into a gas giant. With Webb, finding "important chemicals will be the norm rather than the exception," says one expert. He predicts that when Webb starts to study cooler planets closer in size to Earth, there will be some real surprises -- perhaps some gases that could indicate whether the planets are amenable to life. "It's anyone's guess," he says. "A whole zoo of chemicals is possible." The findings first appeared on the preprint server arXiv yesterday and they will appear in Nature in the near future.

An anonymous reader quotes a report from ScienceAlert: In a monumental leap in stem cell research, an experiment led by researchers from the University of Cambridge in the UK has developed a living model of a mouse embryo complete with fluttering heart tissues and the beginnings of a brain. The research advances the recent success of a team comprised of some of the same scientists who pushed the limits on mimicking the embryonic development of mice using stem cells that had never seen the inside of a mouse womb. In the past, researchers in embryology have focused largely on plucking choice stem cells from parts of an embryo that would grow into an animal and encouraging them to proliferate in glassware full of specially selected nutrients. Over the years, this method has resulted in clumps of cells containing the basic starting structures of a gut and a fold of tissues called the neural tube. What the so-called 'gastruloid' model contains in form, however, it lacks in function. Many features expected to develop alongside these tissues aren't present, making it harder to draw parallels between the model and an authentic growing embryo. There are ways to encourage brain-like structures to appear, as well as functioning heart tissue and a more complex gut tube. Yet workarounds based on comparatively simple hormonal soups can only go so far.

Mixing stem cells representative from these three major tissue groups and improving on previous methods for their development in vitro (that means in a dish) into an embryoid, the team found their model could progress under its own steam to develop a nervous system equivalent to a natural mouse embryo at 8.5 days post-conception. The step is a small one, equivalent to just a single day of development for an unborn mouse. But a lot can happen in that 24 hours of gestation. The synthetic embryoid also contained foundational heart tissue that twitched out a beat and the beginnings of a gut, as well as the start of structures that in an actual embryo could build parts of the skeleton, muscles, and other tissues beneath the skin. On its own, the model wouldn't continue to develop into anything like a thriving baby mouse. Science is far from able to produce anything so advanced as a functional organ from stem cells alone, let alone an entire animal. While the resemblance is quite significant in research, it is -- so to speak -- only skin deep, lacking the signals that would see it transform into the fully-formed organism it models. Having a collection of tissues that authentically reflects development outside of a body provides researchers with the opportunity to not only observe, but ethically test genetic changes that could help improve our understanding of how our bodies grow. The findings appear in a study published in the journal Nature.

According to a new paper published in the journal Nature, researchers at MIT describe new aluminum-sulfur batteries that are made entirely from abundant and inexpensive materials and can be charged in less than a minute. "The new battery architecture, which uses aluminum and sulfur as its two electrode materials, with a molten salt electrolyte in between, is described today in the journal Nature, in a paper by MIT Professor Donald Sadoway, along with 15 others at MIT and in China, Canada, Kentucky, and Tennessee," reports MIT News. The caveat with this new kind of battery is that it requires a variety of molten salts that need to be "close to the boiling point of water." From the report: In their experiments, the team showed that the battery cells could endure hundreds of cycles at exceptionally high charging rates, with a projected cost per cell of about one-sixth that of comparable lithium-ion cells. They showed that the charging rate was highly dependent on the working temperature, with 110 degrees Celsius (230 degrees Fahrenheit) showing 25 times faster rates than 25 C (77 F). Surprisingly, the molten salt the team chose as an electrolyte simply because of its low melting point turned out to have a fortuitous advantage. One of the biggest problems in battery reliability is the formation of dendrites, which are narrow spikes of metal that build up on one electrode and eventually grow across to contact the other electrode, causing a short-circuit and hampering efficiency. But this particular salt, it happens, is very good at preventing that malfunction. The chloro-aluminate salt they chose "essentially retired these runaway dendrites, while also allowing for very rapid charging," Sadoway says. "We did experiments at very high charging rates, charging in less than a minute, and we never lost cells due to dendrite shorting."

What's more, the battery requires no external heat source to maintain its operating temperature. The heat is naturally produced electrochemically by the charging and discharging of the battery. "As you charge, you generate heat, and that keeps the salt from freezing. And then, when you discharge, it also generates heat," Sadoway says. In a typical installation used for load-leveling at a solar generation facility, for example, "you'd store electricity when the sun is shining, and then you'd draw electricity after dark, and you'd do this every day. And that charge-idle-discharge-idle is enough to generate enough heat to keep the thing at temperature." This new battery formulation, he says, would be ideal for installations of about the size needed to power a single home or small to medium business, producing on the order of a few tens of kilowatt-hours of storage capacity.

For larger installations, up to utility scale of tens to hundreds of megawatt hours, other technologies might be more effective, including the liquid metal batteries Sadoway and his students developed several years ago and which formed the basis for a spinoff company called Ambri, which hopes to deliver its first products within the next year. For that invention, Sadoway was recently awarded this year's European Inventor Award. The smaller scale of the aluminum-sulfur batteries would also make them practical for uses such as electric vehicle charging stations, Sadoway says. He points out that when electric vehicles become common enough on the roads that several cars want to charge up at once, as happens today with gasoline fuel pumps, "if you try to do that with batteries and you want rapid charging, the amperages are just so high that we don't have that amount of amperage in the line that feeds the facility." So having a battery system such as this to store power and then release it quickly when needed could eliminate the need for installing expensive new power lines to serve these chargers. "The first order of business for the company is to demonstrate that it works at scale," Sadoway says, and then subject it to a series of stress tests, including running through hundreds of charging cycles.

If you're looking for a detailed breakdown of how this new battery works, we recommend you check out Ars Technica's article here.

Insects can be turned into meat-like flavors, helping provide a more environmentally friendly alternative to traditional meat options, scientists have discovered. From a report: Mealworms, the larval form of the yellow mealworm beetle, have been cooked with sugar by researchers who found that the result is a meat-like flavoring that could one day be used on convenience food as a source of protein. While mealworms have until now mostly been used as snacks for pets or as bait while fishing, they have potential as a food source for humans to help get the recognizable flavors of meat without the harmful impacts upon the climate, as well as direct air and water pollution, of raising beef, pork and other animal-based foods. "Insects are a nutritious and healthy food source with high amounts of fatty acids, vitamins, minerals, fiber and high-quality protein, which is like that of meat," says In Hee Cho, a researcher at Wonkwang University in South Korea who led the study.

"Many consumers seriously like and need animal protein in our diet. However, traditional livestock farming produces more greenhouse gas emissions than cars do. On the other hand, insect farming requires just a fraction of the land, water and feed in comparison to traditional livestock farming." Cho said that edible insects, such as mealworms and crickets, were "superfoods" that have long been enjoyed by communities in Asia, Africa and South America. However, people in Europe and North America are generally more squeamish about eating insects, despite recent forays by several restaurants and supermarkets into providing insect options for consumers.

An anonymous reader quotes a report from The Guardian: A study found losing just one hour of rest could kill people's desire to help others, even relatives and close friends. The team noted that a bad night appeared to dampen activity in the part of the brain that encouraged social behavior. "We discovered that sleep loss acts as a trigger of asocial behavior, reducing the innate desire of humans to help one another," said Prof Matthew Walker, co-author of the study at the University of California, Berkeley. "In a way, the less sleep you get, the less social and more selfish you become." Writing in the PLoS Biology journal, the team suggest that a chronic sleep deficit could harm social bonds and compromise the altruistic instincts that shape society. "Considering the essentiality of humans helping in maintaining cooperative, civilized societies, together with the robust erosion of sleep time over the last 50 years, the ramifications of these discoveries are highly relevant to how we shape the societies we wish to live in," said Walker.

The team examined the willingness of 160 participants to help others with a "self-reported altruism questionnaire", which they completed after a night's sleep. Participants responded to different social scenarios on a scale from "I would stop to help" to "I would ignore them." In one experiment involving 24 participants, the researchers compared answers from the same person after a restful night and after 24 hours without sleep. The results revealed a 78% decline in self-reported eagerness to help others when tired. The team then performed brain scans of those participants and found a short night was associated with reduced activity in the social cognitive brain network, a region involved in social behavior. Participants were as reluctant to assist friends and family as strangers, the researchers said. "A lack of sleep impaired the drive to help others regardless of whether they were asked to help strangers or close relatives. That is, sleep loss triggers asocial, anti-helping behavior of a broad and indiscriminate impact," said Walker.

To determine whether altruism takes a hit in the real world, the team then tracked more than 3m charitable donations in the US before and after clocks were shifted an hour forward to daylight saving time, suggesting a shorter period of sleep. They found a 10% drop in donations after the transition. "Our study adds to a growing body of evidence demonstrating that inadequate sleep not only harms the mental and physical wellbeing of an individual but also compromises the bonds between individuals, and even the altruistic sentiment of an entire nation," said Walker. Luckily, we can catch up on sleep. Walker said: "The positive note emerging from all our studies is that once sleep is adequate and sufficient the desire to help others is restored. But it's important to note that it is not only sleep duration that is relevant to helping. We found that the factor that was most relevant was actually sleep quality, above and beyond sleep quantity," he added.

An anonymous reader quotes a report from Phys.Org: A recent report by the United States Centers for Disease Control and Prevention found more than 80 percent of urine samples from children and adults in the U.S. contained the herbicide glyphosate. A study by Florida Atlantic University and Nova Southeastern University takes this research one step further and is the first to link the use of the herbicide Roundup, a widely used weed killer, to convulsions in animals. Glyphosate, the weed killer component in Roundup, is the world's most commonly used herbicide by volume and by land-area treated. Glyphosate-resistant crops account for almost 80 percent of transgenic crop cultivated land, which has resulted in an estimated 6.1 billion kilos of glyphosate sprayed across the world from 2005 to 2014. Roundup is used at both industrial and consumer levels, and its use is projected to dramatically increase over the coming years.A major question, yet to be fully understood, is the potential impact of glyphosate on the nervous system.

Results, published in Scientific Reports, showed that glyphosate and Roundup increased seizure-like behavior in soil-dwelling roundworms and provides significant evidence that glyphosate targets GABA-A receptors. These communication points are essential for locomotion and are heavily involved in regulating sleep and mood in humans. What truly sets this research apart is that it was done atsignificantly lesslevels than recommended by the EPA and those used in past studies. "The concentration listed for best results on the Roundup Super Concentrate label is 0.98 percent glyphosate, which is about 5 tablespoons of Roundup in 1 gallon of water," said [project lead Akshay S. Naraine]. "A significant finding from our study reveals that just 0.002 percent glyphosate, a difference of about 300 times less herbicide than the lowest concentration recommended for consumer use, had concerning effects on the nervous system."

Using C. elegans, a soil-dwelling roundworm, researchers first tested glyphosate alone and then both the U.S. and United Kingdom formulations of Roundup from two distinct time periods -- before and after the U.K.'s 2016 ban on polyethoxylated tallowamine (POEAs). These conditions were selected to pinpoint which effects are specific to the active ingredient glyphosate, Roundup formulations in general, the POEAs surfactants, or any combination of these. The study found that the active ingredient glyphosate exacerbated convulsions in C. elegans and suggest the GABA-A receptor as a neurological target for the observed physiological changes. The data also indicate that there is an important distinction between exposure to glyphosate and Roundup, with Roundup exposure increasing the percentage of C. elegans that did not recover from seizure activity. The non-recovery phenotype and prolonged convulsions in C. elegans from this study have helped to set a foundation for understanding nuanced physiological effects of herbicide that occur at concentrations exponentially below neurotoxic levels.

Chinese authorities have punished 27 people over the publication of a maths textbook that went viral over its "tragically ugly" illustrations. The Guardian reports: A months-long investigation by a ministry of education working group found the books were "not beautiful," and some illustrations were "quite ugly" and did not "properly reflect the sunny image of China's children." The mathematics books were published by the People's Education Press almost 10 years ago, and were reportedly used in elementary schools across the country. But they went viral in May after a teacher published photos of the illustrations inside, including people with distorted faces and bulging pants, boys pictures grabbing girls' skirts and at least one child with an apparent leg tattoo.

Social media users were largely amused by the illustrations, but many also criticized them as bringing disrepute and "cultural annihilation" to China, speculating they were the deliberate work of western infiltrators in the education sector. Related hashtags were viewed billions of times, embarrassing the Communist party and education authorities who announced a review of all textbooks "to ensure that the textbooks adhere to the correct political direction and value orientation."

In a lengthy statement released on Monday, the education authorities said 27 individuals were found to have "neglected their duties and responsibilities" and were punished, including the president of the publishing house, who was given formal demerits, which can affect a party member's standing and future employment. The editor-in-chief and the head of the maths department editing office were also given demerits and dismissed from their roles. The statement said the illustrators and designers were "dealt with accordingly" but did not give details. They and their studios would no longer be engaged to work on textbook design or related work, it said. The highly critical statement found a litany of issues with the books, including critiquing the size, quantity and quality of illustrations, some of which had "scientific and normative problems."

If your canine companion ain't nothing but a hound dog, crying all the time, it may be because they are brimming with emotion. From a report: Researchers in Japan say they have found that dogs produce tears when reuniting with their owners. What's more, the blubbing appears to be linked to levels of the "bonding hormone" oxytocin. "This is the first report demonstrating that positive emotion stimulates tear secretion in a non-human animal, and that oxytocin functions in tear secretion," the team said. Writing in the journal Current Biology, they describe how eye contact between humans and dogs encourages the former to care for the latter, while the gaze of a dog can cause a release of oxytocin in its owner. Dogs have also evolved the ability to raise their inner eyebrows, a trait that scientists say induces humans to nurture them. Now researchers in Japan have found tears might have a similar effect.

"I have two standard poodles and I had one female pregnant six years ago," Prof Takefumi Kikusui, a co-author of the research at Azabu University, told the Guardian. Noticing her face was more tender than usual when nursing her puppies, Kikusui realised her eyes were teary. "That gave me the idea that oxytocin might increase tears," he said. "We previously observed that oxytocin is released both in dogs and owners when interacting. So we conducted a reunion experiment." In the first step, the team measured the volume of tears produced by 18 dogs when in their normal home environment with their owner, using Schirmer's test. This involves placing a special strip of paper inside the lower eyelid and measuring how far along the strip the moisture travels.

That person who looks just like you is not your twin, but if scientists compared your genomes, they might find a lot in common. From a report: Charlie Chasen and Michael Malone met in Atlanta in 1997, when Mr. Malone served as a guest singer in Mr. Chasen's band. They quickly became friends, but they didn't notice what other people around them did: The two men could pass for twins. Mr. Malone and Mr. Chasen are doppelgangers. They look strikingly similar, but they are not related. Their immediate ancestors aren't even from the same parts of the world; Mr. Chasen's forebears hailed from Lithuania and Scotland, while Mr. Malone's parents are from the Dominican Republic and the Bahamas. The two friends, along with hundreds of other unrelated look-alikes, participated in a photography project by Francois Brunelle, a Canadian artist. The picture series, "I'm not a look-alike!," was inspired by Mr. Brunelle's discovery of his own look-alike, the English actor Rowan Atkinson.

The project has been a hit on social media and other parts of the internet, but it's also drawn the attention of scientists who study genetic relationships. Dr. Manel Esteller, a researcher at the Josep Carreras Leukaemia Research Institute in Barcelona, Spain, had previously studied the physical differences between identical twins, and he wanted to examine the reverse: people who look alike but aren't related. "What's the explanation for these people?" he wondered. In a study published Tuesday in the journal Cell Reports, Dr. Esteller and his team recruited 32 pairs of look-alikes from Mr. Brunelle's photographs to take DNA tests and complete questionnaires about their lifestyles. The researchers used facial recognition software to quantify the similarities between the participants' faces. Sixteen of those 32 pairs achieved similar overall scores to identical twins analyzed by the same software. The researchers then compared the DNA of these 16 pairs of doppelgangers to see if their DNA was as similar as their faces.

Dr. Esteller found that the 16 pairs who were "true" look-alikes shared significantly more of their genes than the other 16 pairs that the software deemed less similar. "These people really look alike because they share important parts of the genome, or the DNA sequence," he said. That people who look more alike have more genes in common "would seem like common sense, but never had been shown," he added. However, DNA alone doesn't tell the whole story of our makeup. Our lived experiences, and those of our ancestors, influence which of our genes are switched on or off -- what scientists call our epigenomes. And our microbiome, our microscopic co-pilot made up of bacteria, fungi and viruses, is further influenced by our environment. Dr. Esteller found that while the doppelgangers' genomes were similar, their epigenomes and microbiomes were different. "Genetics put them together, and epigenetics and microbiome pulls them apart," he said.

Space can be downright noisy in the right conditions, such as the hot gas surrounding the immense black hole at the center of the Perseus galaxy cluster, according to NASA. Motherboard reports: The agency recently tweeted an eerie audio clip that represents actual sound waves rippling through the gas and plasma in this cluster, which is 250 million light years from Earth. "The misconception that there is no sound in space originates because most space is a ~vacuum, providing no way for sound waves to travel," the agency tweeted. "A galaxy cluster has so much gas that we've picked up actual sound. Here it's amplified, and mixed with other data, to hear a black hole!"

Though the acoustic signals generated by the black hole were first identified in 2003 in data from NASA's Chandra X-ray Observatory, they have never been brought into the hearing range of the human ear -- until now. "In some ways, this sonification is unlike any other done before... because it revisits the actual sound waves discovered in data from NASA's Chandra X-ray Observatory," NASA said in a statement. "In this new sonification of Perseus, the sound waves astronomers previously identified were extracted and made audible for the first time." "As it turns out, the sound waves in their natural environment are a whopping 57 octaves below the note middle C, making this black hole a real cosmic baritone," adds Motherboard. "To make these tremors audible to humans, scientists raised their frequencies quadrillions of times (one quadrillion is a million billions, for perspective)."

The James Webb Space Telescope has snapped a pair of near-infrared photos showing Jupiter's polar auroras. "You can also see the planet's extremely faint rings and two of its smaller moons, Amalthea (the bright spot to the far left) and Adrastea (the dot at the left edge of the central ring)," notes Engadget. From the report: The pictures were taken using NIRCam's widefield view on July 27th. As for the trippy visuals? Astronomers created composites using several images produced with filters mapped to multiple colors (particularly visible in the image below). The Great Red Spot and other cloud formations are white as they reflect large amounts of sunlight. The observations should provide more insights into Jupiter's "inner life," according to the European Space Agency. That, in turn, could help scientists understand the behavior of gas giants beyond the Solar System.

An anonymous reader quotes a report from MIT News: Parkinson's disease is notoriously difficult to diagnose as it relies primarily on the appearance of motor symptoms such as tremors, stiffness, and slowness, but these symptoms often appear several years after the disease onset. Now, Dina Katabi, the Thuan (1990) and Nicole Pham Professor in the Department of Electrical Engineering and Computer Science (EECS) at MIT and principal investigator at MIT Jameel Clinic, and her team have developed an artificial intelligence model that can detect Parkinson's just from reading a person's breathing patterns. The tool in question is a neural network, a series of connected algorithms that mimic the way a human brain works, capable of assessing whether someone has Parkinson's from their nocturnal breathing -- i.e., breathing patterns that occur while sleeping. The neural network, which was trained by MIT PhD student Yuzhe Yang and postdoc Yuan Yuan, is also able to discern the severity of someone's Parkinson's disease and track the progression of their disease over time.

The MIT researchers demonstrated that the artificial intelligence assessment of Parkinson's can be done every night at home while the person is asleep and without touching their body. To do so, the team developed a device with the appearance of a home Wi-Fi router, but instead of providing internet access, the device emits radio signals, analyzes their reflections off the surrounding environment, and extracts the subject's breathing patterns without any bodily contact. The breathing signal is then fed to the neural network to assess Parkinson's in a passive manner, and there is zero effort needed from the patient and caregiver. "A relationship between Parkinson's and breathing was noted as early as 1817, in the work of Dr. James Parkinson. This motivated us to consider the potential of detecting the disease from one's breathing without looking at movements," Katabi says. "Some medical studies have shown that respiratory symptoms manifest years before motor symptoms, meaning that breathing attributes could be promising for risk assessment prior to Parkinson's diagnosis." The research has been published in the journal Nature Medicine.