sciencehabit writes "Almost all organisms, from bacteria to mammals, have a circadian clock—a mechanism in their cells which keeps them in sync with Earth's day-and-night cycle. But many organisms follow other rhythms as well. Now, new research provides the first evidence that animals have molecular cycles independent of the circadian rhythm. They include a sea louse whose swimming patterns sync up with the tides, and a marine worm that matures and spawns in concert with the phases of the moon. The discoveries suggest that noncircadian clocks might be common and could explain a variety of biological rhythms."
Sign up for the Slashdot Daily Newsletter! DEAL: For $25 - Add A Second Phone Number To Your Smartphone for life! Use promo code SLASHDOT25. Help SAVE NET NEUTRALITY! ×
Zothecula writes "Earlier this year, we heard about a gun and a fogging system, both of which tag criminals with synthesized DNA. The idea is that when those people are apprehended later, they can be linked to the crime by analyzing the location- or event-specific DNA still on their skin or clothing. Now, scientists at the Technology Transfer Unit of Portugal's University of Aveiro are developing something similar – 'DNA barcodes' that can be applied to products, then subsequently read as a means of identification."
First time accepted submitter loftarasa writes "A group of scientists led by Harvard Professor of Physics Mikhail Lukin and MIT Professor of Physics Vladan Vuletic have developed a form of matter by binding massless photons together in a special kind of medium to create 'photonic molecules', effectively bringing us a bit closer to a world with lightsabers. 'The discovery, Lukin said, runs contrary to decades of accepted wisdom about the nature of light. Photons have long been described as massless particles which don't interact with each other – shine two laser beams at each other, he said, and they simply pass through one another. "Photonic molecules," however, behave less like traditional lasers and more like something you might find in science fiction – the light saber.' The work is described in Nature (paywalled)."
Lucas123 writes "After three years of work, German and French researchers have achieved a new world record on converting sunlight to energy through a photovoltaic cell, achieving a 44.7% rate of efficiency, which was measured at a concentration of 297 suns. The efficiency rating means the solar cell collects 44.7% of the sun's spectrum's energy, from ultraviolet to the infrared spectrum, which is converted into electrical energy. The team of researchers said the technology places them on the path to achieving their roadmap of 50% efficiency in solar energy conversion."
astroengine writes "By now, we probably all know that there was once significant quantities of water on the Martian surface and, although the red planet is bone dry by terrestrial standards, water persists as ice just below the surface to this day. Now, according to a series of new papers published in the journal Science, NASA's Mars Science Laboratory rover Curiosity has found that the Mars topsoil is laced with surprisingly high quantities of the wet stuff. And this could be good news for future Mars colonists. 'If you take a cubic foot of that soil you can basically get two pints of water out it — a couple of water bottles like you'd take to the gym, worth of water,' Curiosity scientist Laurie Leshin, of Rensselaer Polytechnic Institute, N.Y., told Discovery News."
An anonymous reader writes "Former US President Bill Clinton, through the Clinton Global Initiative, has awarded $1 million to a group of Canadian MBA students who are looking to solve urban hunger by feeding people insects. The students will use this as seed money for their start-up, Aspire Food Group, which aims to farm, produce, and sell edible insects as a way of solving world hunger, particularly in slums. Aspire says it will even work toward replacing livestock farms with insect farms in some areas." Insects as food aren't necessarily incompatible with conventional livestock, either.
sciencehabit writes "Medical experts have been powerless to stop the rise of antibiotic-resistant bacteria and are increasingly desperate to develop novel drugs. But a new study finds that smarter use of current antibiotics could offer a solution. Researchers were able to keep resistant bacteria from thriving by alternating antibiotics to specifically exploit the vulnerabilities that come along with resistance—a strategy that could extend the lifespan of existing drugs to continue fighting even the most persistent pathogens."
trendspotter writes "Future computers could run on lab-grown circuits that are thousands of times thinner than a human hair and operate on a fraction of the energy required to power today's silicon-based computer chips, extending 'Moore's Law' for years to come. Stanford engineers' very basic computer device using carbon nanotube technology validates carbon nanotubes as potential successors to today's silicon semiconductors. The achievement is reported today in an article on the cover of Nature magazine written by Max Shulaker and other doctoral students in electrical engineering. The research was led by Stanford professors Subhasish Mitra and H.S. Philip Wong."
ananyo writes "Ghost writing is taking on an altogether different meaning in a mysterious case of alleged scientific fraud. The authors of a paper published in July, which reported significant findings in obesity research, seem to be phantoms. They are not only unknown at the institution listed on the paper, but no trace of them as researchers can be found. The paper, published in the Elsevier journal Biochemical and Biophysical Research Communications, is not the kind of prank that journals have encountered before, in which hoaxsters have submitted dummy papers to highlight weaknesses in the peer-review process. The paper's reported findings — that overexpression of two novel proteins in fat cells leads to improvements in metabolic processes related to diabetes and obesity in mice — are, in fact, true. Too true, in the opinion of Bruce Spiegelman, a cell biologist at Harvard Medical School's Dana-Farber Cancer Institute. He says that he has presented similar findings at about six research meetings, and is preparing to submit them to a journal. He suspects that the BBRC paper was intended as a spoiler of his own lab's work."
schwit1 writes "Like emails and documents stored in the cloud, your prescription medical records may have a tenuous right to privacy. In response to a lawsuit filed by the American Civil Liberties Union (ACLU) over the privacy of certain medical records, the U.S. Drug Enforcement Administration is arguing (ACLU response) that citizens whose medical records are handed over to a pharmacy — or any other third-party — have 'no expectation of privacy' for that information." Oregon mandates that pharmacies report information on people receiving certain drugs to a centralized database (ostensibly to "...help people work with their health care providers and pharmacists to know what medications are best for them."). State law does allow law enforcement to access the records, but only with a warrant. The DEA, however, thinks that, because the program is public, a citizen is knowingly disclosing that information to a third party thus losing all of their privacy rights (since you can always just opt out of receiving medical care) thanks to the Controlled Substances Act. The ACLU and medical professionals (PDF) don't think there's anything voluntary about receiving medical treatment, and that medical ethics override other concerns.
ananyo writes "An offshoot of Mozilla is aiming to discover whether a review process could improve the quality of researcher-built software that is used in myriad fields today, ranging from ecology and biology to social science. In an experiment being run by the Mozilla Science Lab, software engineers have reviewed selected pieces of code from published papers in computational biology. The reviewers looked at snippets of code up to 200 lines long that were included in the papers and written in widely used programming languages, such as R, Python and Perl. The Mozilla engineers have discussed their findings with the papers’ authors, who can now choose what, if anything, to do with the markups — including whether to permit disclosure of the results. But some researchers say that having software reviewers looking over their shoulder might backfire. 'One worry I have is that, with reviews like this, scientists will be even more discouraged from publishing their code,' says biostatistician Roger Peng at the Johns Hopkins Bloomberg School of Public Health in Baltimore, Maryland. 'We need to get more code out there, not improve how it looks.'"
Daniel_Stuckey writes "From an article announcing the sites' decision to do away with comments: 'It wasn't a decision we made lightly. As the news arm of a 141-year-old science and technology magazine, we are as committed to fostering lively, intellectual debate as we are to spreading the word of science far and wide. The problem is when trolls and spambots overwhelm the former, diminishing our ability to do the latter. ... even a fractious minority wields enough power to skew a reader's perception of a story, recent research suggests. ... A politically motivated, decades-long war on expertise has eroded the popular consensus on a wide variety of scientifically validated topics. Everything, from evolution to the origins of climate change, is mistakenly up for grabs again. Scientific certainty is just another thing for two people to "debate" on television. And because comments sections tend to be a grotesque reflection of the media culture surrounding them, the cynical work of undermining bedrock scientific doctrine is now being done beneath our own stories, within a website devoted to championing science.'" This comes alongside news that Google is trying to clean up YouTube comments by adding integration with Google+. "You’ll see posts at the top of the list from the video’s creator, popular personalities, engaged discussions about the video, and people in your Google+ Circles."
sciencehabit writes "Few features of child-rearing occupy as much parental brain space as sleep, and with it the timeless question: Is my child getting enough? Despite the craving among many parents for more sleep in their offspring (and, by extension, themselves), the purpose that sleep serves in young kids remains something of a mystery—especially when it comes to daytime naps. Do they help children retain information, as overnight sleep has been found to do in adults? A new study provides the first evidence that daytime sleep is in fact critical for effective learning in young children."
chicksdaddy writes "In an important move, the U.S. Food & Drug Administration (FDA) has released final guidance to mobile application developers that are creating medical applications to run on mobile devices. Some applications, it said, will be treated with the same scrutiny as traditional medical devices. The agency said on Monday that, while it doesn't see the need to vet 'the majority of mobile apps,' because they pose 'minimal risk to consumers,' it will exercise oversight of mobile medical applications that are accessories to regulated medical devices, or that transform a mobile device into a regulated medical device. In those cases, the FDA said that mobile applications will be assessed 'using the same regulatory standards and risk-based approach that the agency applies to other medical device.' The line between a mere 'app' and a 'medical device' is fuzzy. The FDA said it will look to the 'intended use of a mobile app' when determining whether it meets the definition of a medical 'device.' The Agency may study the labeling or advertising claims used to market it, or statements by the device maker and its representatives. In general, 'when the intended use of a mobile app is for the diagnosis of disease or other conditions, or the cure, mitigation, treatment or prevention of disease, or it is intended to affect the structure of any function of the body of man, the mobile app is a device.'"
schwit1 writes "A group of Serbian academics, disgusted with the poor state of their country's research output, have scammed a Romanian science journal by getting it to accept their completely fabricated hoax article. From the article: 'The paper is replete with transparent gimmicks — obvious, that is, had anyone at the publication been paying attention — including a reference to the scholarship of [singer Michael] Jackson, Weber, [porn star Ron] Jeremy and citations to new studies by Bernoulli and Laplace, both dead more than 180 years (Weber died in 1920). They also throw in references to the "Journal of Modern Illogical Studies," which to the best of our knowledge does not and never has existed (although perhaps it should), and to a researcher named, dubiously, "A.S. Hole." And, we hasten to add, the noted Kazakh polymath B. Sagdiyev, otherwise known as Borat.' Their paper is hilarious and completely ridiculous, and yet it was published in a so-called serious journal without question. The best part is that they list Alan Sokal's hoax paper from 1996 as one of their sources."
New submitter I3MOUNTAINS writes "Omid Kokabee, a University of Texas graduate student who has been imprisoned in Iran for more than two years, received the American Physical Society's Andrei Sakharov human rights prize for refusing to collaborate on the country's nuclear program. In May, an Iranian court sentenced him to ten years in prison for 'communicating with a hostile government' and receiving 'illegal earnings.' The so-called 'illegal earnings' were the student loans he received while in Texas."
carmendrahl writes "Eukaryotic cells, which are defined by having a nucleus, rarely grow larger than 10 micrometers in diameter. Scientists know a few reasons why this is so. A new study suggests another reason — gravity. Studying egg cells from the frog Xenopus laevis, which reach as big as 1 mm across and are common research tools, Princeton researchers Marina Feric and Clifford Brangwynne noticed that the insides of the eggs' nuclei settled to the bottom when they disabled a mesh made from the cytoskeleton protein actin. They think the frog eggs evolved the mesh to counteract gravity, which according to their calculations becomes significant if cells get bigger than 10 micrometers in diameter."
minty3 writes "Scientists say they used the pandemic as a 'natural experiment' to discover how the body's immune system builds resistance to the flu. The research, published in the journal Nature Medicine, showed how certain immune cells helped some avoid the severe illness. 'Our findings suggest that by making the body produce more of this specific type of CD8 T cell, you can protect people against symptomatic illness,' said study leader Professor Ajit Lalvani, from the National Heart and Lung Institute at Imperial College London, in a statement. 'This provides the blueprint for developing a universal flu vaccine.'"
KentuckyFC writes "Many types of small spider release threads into the air which then lift and carry them significant distances. Biologists have found them at altitudes of up to 4 km. The conventional thinking is that the threads catch thermal air currents which then carry them away but this does not explain how spiders perform their trick even when there is little or no wind. Now one physicist says the explanation is the atmosphere's natural electric field which has an average downward-pointing magnitude of 120 Volts per metre. He calculates that a strand of silk need only gain a negative charge of around 30 nanoCoulombs to lift a spider. That explains how the spiders take off on windless days, how they reach such great heights and how several strands can lift heavier spiders of up to 100 milligrams."
schliz writes "A one percentage point increase in an inflation forecast brings about a 75% rise in laughter, according to an American University PhD student, who studied transcripts of the Federal Open Market Committee at the Federal Reserve. Laughter usually comes in response to witticisms during a meeting at the time of the inflation forecast, and has been shown to be a mechanism for coping with the stress of a perceived threat."
We mentioned recently the rebound in Arctic ice levels compared to those found at the end of last summer; now that the 2013 minimum has been reached, Forbes' Alex Knapp points out that 2013's figures still show the 6th lowest ice extent in recorded history. "This pattern is expected to continue as average global temperatures continue to rise, leading to further Arctic Ice melts. The volume of sea ice – that is, how thick the Arctic ice is, has also been steadily declining over the same period. And although the charts above only go back to the 80s, the loss of sea ice began several decades prior to that. In 2011, a paper published in Nature estimating Arctic ice extent for the past 1450 years shows a sharp decline in Arctic ice beginning in the mid-20th century."
The Washington Post is one of many sources to report the possibly disappointing news that NASA's Curiosity rover has failed to find any methane on Mars. "[NASA planetary scientist Michael] Mumma had high hopes for a positive result because he and his colleagues believe they have detected methane on Mars remotely, from telescopes on Earth that can discern the chemical nature of Mars’s atmosphere. A European orbiter around Mars also spotted methane. But the methane has proved ephemeral — now you see it, now you don’t. Mumma said he and his colleagues are reviewing their work to see if there is some error in the mix. Perhaps the methane simply disappears quickly on Mars, through some unknown chemical process. 'It’s possible that we don’t understand something that’s going on in the Martian atmosphere,' said Michael Meyer, lead scientist for NASA’s Mars Exploration Program.'"
From an article at Discovery News: "A bustling airport would hardly seem the place to find a new species of reclusive animal, but a team of California biologists recently found a shy new species of legless lizard living at the end of a runway at Los Angeles International Airport. What’s more, the same team discovered three additional new species of these distinctive, snake-like lizards that are also living in some inhospitable-sounding places for wildlife: at a vacant lot in downtown Bakersfield, among oil derricks in the lower San Joaquin Valley and on the margins of the Mojave desert." Here's some more information in the form of a press release from Cal State Fullerton, home to James Parham, one of the discoverers.
Reuters has a quick report that "[a] software glitch will delay Orbital Sciences' trial cargo ship from reaching the International Space Station until Tuesday, officials said on Sunday. The company's Cygnus capsule, which blasted off Wednesday from Virginia for a test flight, had been scheduled to reach the station on Sunday. ... Orbital Sciences said it had found the cause of the data discrepancy and was developing a software fix. ... The next opportunity for the capsule to rendezvous and dock with the station will be on Tuesday." The WSJ has a more detailed article, and notes "The mission is a challenge for Orbital, which has invested more than five years and about $500 million of its own funds to develop a commercial-cargo capability. But it also presents a dramatic test of NASA's plans to outsource to industry all U.S. resupply missions to the space station. The agency has paid Orbital about $285 million to spur development of the Cygnus and Antares rocket system."
schwit1 writes "In a paper published today on the Los Alamos astro-ph preprint service, astronomers propose that as many as eleven past extinction events can be linked to the Sun's passage through the spiral arms of the Milky Way. (You can download the paper here [pdf].) From the paper: 'A correlation was found between the times at which the Sun crosses the spiral arms and six known mass extinction events. Furthermore, we identify five additional historical mass extinction events that might be explained by the motion of the Sun around our Galaxy. These five additional significant drops in marine genera that we find include significant reductions in diversity at 415, 322, 300, 145 and 33 Myr ago. Our simulations indicate that the Sun has spent ~60% of its time passing through our Galaxy's various spiral arms.'"
An anonymous reader writes "Songbirds living along the Hudson River in New York state are exposed to levels of PCBs that don't kill them but do disrupt the songs they sing, reports a team of researchers from Cornell University. Their study reveals that birds residing in regions with higher environmental PCB contamination levels have higher total blood PCBs, which affects their singing behaviour: the team found these species' songs varied predictably based on their PCB load, and also based upon the type of PCBs. Thus, the scientists suggest that another of the many toxic effects of sublethal environmental PCB pollution are neurological effects that translate into observable behaviour changes that disrupt song quality used by birds to communicate."
R3d M3rcury writes with the story that "NASA and Boeing, along with other nations, are studying the feasibility of keeping the International Space Station in orbit until 2020 and possibly until 2028 — the 30 year anniversary of the launch of the first module." From the article: "To assess the long-term structural health of the station, Boeing engineers developed detailed computer models based on NASA's projected use -- the expected stresses caused by future dockings, reboosts, crew activity and thermal cycles -- and combined that with actual data from on-board accelerometers and strain gauges. ... "What we're looking at is theoretical crack growth," Pamela McVeigh, the engineer in charge of the Boeing structural analysis in Houston, told CBS News. "So the failure mode would be you'd have a crack beginning, probably (at) a bolt hole, and the crack would grow to another edge. So you'd lose like a flange on a C-beam, or an I-beam. The stiffness of your structure would then change, the bolt hole you that you were growing the crack out of, now that bolt wouldn't be effective."
An anonymous reader writes with a story excerpt that may inspire envy in some readers: "Most beer guts are the result of consuming fermented brew, but a new case study describes a rare syndrome that had one man's gut fermenting brew, not consuming it. It's called gut fermentation syndrome or auto-brewery syndrome, and it's 'a relatively unknown phenomenon in Western medicine' according to a study published in July's International Journal of Clinical Medicine. 'Only a few cases have been reported in the last three decades' according to Dr. Barbara Cordell, the dean of nursing at Panola College in Carthage, Texas, and Dr. Justin McCarthy, a Lubbock gastroenterologist, the study's authors." (More at NPR.)
Taco Cowboy writes "'NASA is calling off attempts to find its Deep Impact comet probe after a suspected software glitch shut down radio communications in August, officials said on Friday.' Last month, engineers lost contact with Deep Impact and unsuccessfully tried to regain communications. The cause of the failure was unknown, but NASA suspects the spacecraft lost control, causing its antenna and solar panels to be pointed in the wrong direction. NASA had hoped Deep Impact would play a key role in observations of the approaching Comet ISON, a suspected first-time visitor to the inner solar system that was discovered in September 2012 by two Russian astronomers. The comet is heading toward a close encounter with the sun in November, a brush that it may not survive." Deep Impact has had a pretty good run, though: from its original mission to launch a copper slug at a comet (hence the name), to looking for Earth-sized planets.
Sockatume writes "By now you have likely read about the 'alien life forms' discovered in the upper atmosphere over Yorkshire, via the mass media reprinting a press release from the University of Sheffield. Unfortunately, the paper comes from researchers with an infamous tendency to identify inanimate objects as aliens, and is published in a journal that seems to principally exist to print unlikely astrobiological claims. Phil Plait points out flaws in a number of their claims. Quoting: 'They found what appears to be a fragment of a frustrule, the hard outer casing around a diatom. It certainly does look like one. But is it? Weirdly, they apparently didn’t even check. Seriously, in the paper they describe the photo of the object and say [emphasis mine], "On one stub was discovered part of a diatom which, we assume, is clear enough for experts on diatom taxonomy to precisely identify." That implies very strongly they didn’t ask an expert in diatoms to look at their sample. That’s bizarre. If I were claiming this were an ET plant, that’s the very first thing I’d do!'"
minty3 writes "Found in the Ocucaje Desert in southern Peru, the fossils belong to a group called Achaeocetes, or ancient whales, that possess both land and sea-dwelling characteristics. Over time, the ancient land animals adapted to water environments where their legs became fin-like and their bodies began to resemble modern sea mammals like dolphins and whales."
Funksaw writes "Here's an op-ed by first-time politician, long-time Slashdotter Brian Boyko, where he talks about his experiences testifying at the Texas Board of Education in favor of having real science in science textbooks. But beyond that, he also tries to examine, philosophically, why there is such hardened resistance to the idea of evolution in Texas. From the article: '[W]hat is true is that evolution tests faith. The fact of evolution is incontrovertible and supported by mounds of empirical evidence. Faith, on the other hand, is fragile. It is supported only by the strength of human will. And this is where it gets tricky. Because to many believers, faith, not works, is the only guarantee that one can pass God's litmus test and gain access to His divine kingdom. To lose one's faith is to literally damn oneself. So tests to that faith must be avoided at all costs. Better to be a philosophical coward than a theological failure.'"
An anonymous reader writes "A recent Slate article makes the argument that manned space exploration is not useful and we should concentrate on Robots. The article makes the claim that manned space exploration was never popular and by diverting money to robotic space exploration we can get more bang for the buck. From the article: 'Most of the arguments in favor of manned space exploration boil down to the following: a) We need to explore space using people since keeping the entire human race on a single piece of rock is a bad strategy, and even if we send robots first, people would have to make the journey eventually; and b) humans can explore much better than robots. Both these arguments are very near-sighted—in large part because they assume that robots aren’t going to get any better. They also fail to recognize that technology may radically change humans in the next century or so.'"
ananyo writes "Russia's lower house of parliament, the State Duma, approved controversial reforms to the Russian Academy of Sciences (RAS) on 18 September. More than 330 members of the Duma voted in favor of the law, with only 107 against, in a move critics say will deprive the 289-year-old body of its independence and halt attempts to revitalize Russia's struggling science system. If, as is widely expected, the parliament's upper house and Russian President Vladimir Putin approve the law, the 436 institutes and 45,000 research staff of Russia's primary basic-research organization will be managed by a newly established federal agency that reports directly to Putin. The agency will manage the academy's 60-billion-rouble (US$1.9-billion) budget and extensive property portfolio, which includes lucrative sites in Moscow and St Petersburg, and will also have a say in the appointment of institute directors. 'This is not a reform — this is a liquidation of science in Russia,' says Alexander Kuleshov, director of the academy's Institute for Information Transmission Problems in Moscow."
at10u8 writes "The ITU-R and BIPM are holding a joint workshop on the Future of the International Time Scale. This is the next of many steps toward the possibility that radio broadcasts of time signals might abandon leap seconds. All of the presentations are online and the press release for the workshop indicates there will be video interviews afterwards."
astroengine writes "NASA's Mars rover Curiosity has been scouring the thin Martian atmosphere for methane — a potential tracer for the presence of Martian life. However, since the gas also can be produced geologically, any findings promised a meaty debate. That discussion can be shelved, perhaps permanently, new findings from a team of Curiosity scientists shows. The most extensive search yet for methane in Mars' atmosphere has come up empty. 'It's disappointing, of course. We would have liked to get [to Gale Crater] and found lots of methane and measure all the isotopes,' lead researcher Christopher Webster, with NASA's Jet Propulsion Laboratory in Pasadena, Calif., told Discovery News."
MTorrice writes "The same wells that energy companies drill to extract natural gas from shale formations could become repositories to store large quantities of carbon dioxide. A new computer model suggests that wells in the Marcellus shale, a 600-sq-mile formation in the northeastern U.S. that is a hotbed for gas extraction, could store half the CO2 emitted by the country's power plants from now until 2030."
KentuckyFC writes "Astronomers think that near-Earth Asteroids the size of apartment blocks number in the millions. And yet they spot new ones at the rate of only about 30 a year because these objects are so faint and fast moving. Now astronomers at the Jet Propulsion Laboratory have developed a technique called synthetic tracking for dramatically speeding up asteroid discovery. Insteads of long exposures in which near-Earth asteroids show up as faint streaks, the new technique involves taking lots of short exposures and adding them together in a special automated way. The trick is to shift each image so that the pixels that record the asteroid are superimposed on top of each other. The result is an image in which the asteroid is sharp point of light against a background of star streaks. They say synthetic tracking has the capability to spot 80 new near Earth asteroids each night using a standard 5 metre telescope. That'll be handy for spotting rocks heading our way before they get too close and for identifying targets for NASA's future asteroid missions."
cold fjord writes with this excerpt from Wired: "Most of what humanity knows about the outer planets came back to Earth on plutonium power. ... The characteristics of this metal's radioactive decay make it a super-fuel. ... there is no other viable option. Solar power is too weak, chemical batteries don't last, nuclear fission systems are too heavy. So, we depend on plutonium-238, a fuel largely acquired as by-product of making nuclear weapons. But there's a problem: We've almost run out. 'We've got enough to last to the end of this decade. That's it,' said Steve Johnson, a nuclear chemist at Idaho National Laboratory. And it's not just the U.S. reserves that are in jeopardy. The entire planet's stores are nearly depleted. ... what's left has already been spoken for and then some. ... Political ignorance and shortsighted squabbling, along with false promises from Russia, and penny-wise management of NASA's ever-thinning budget still stand in the way of a robust plutonium-238 production system." The plutonium shortage has been deepening for a long time, leading to some creative solutions. The Wired article alludes to the NASA project underway to create more, but leans toward gloom.
Kristian vonBengtson writes "Objective Europa aims to send human beings to Jupiter's icy moon, Europa, on a one way mission in search of extraterrestrial life while expanding the borders of exploration and knowledge for all mankind. The starting point of Objective Europa is purely theoretical (Phase I) but will move into more advanced phases including prototyping, technology try-outs, and eventually a crewed launch. Objective Europa is a crowd-researched project made up of an international team of volunteers. Many people from a wide range of backgrounds have already joined and become a vital part of the mission. ... [Europa's] deep ocean and active geology provide a solid platform for extraterrestrial life, making Europa one of the most enticing locations to explore in the solar system. The 600-day flight required to reach Europa is manageable with today's technology, and the many challenges of such a mission pose a perfect starting point for new research and innovative thinking."
Google has announced the formation of a new company called Calico, which aims to promote health and fight aging. Larry Page said, "That’s a lot different from what Google does today. And you’re right. But as we explained in our first letter to shareholders, there’s tremendous potential for technology more generally to improve people’s lives. So don’t be surprised if we invest in projects that seem strange or speculative compared with our existing Internet businesses." He expanded upon this in an interview with Time: "I'm not proposing that we spend all of our money on those kinds of speculative things. But we should be spending a commensurate amount with what normal types of companies spend on research and development, and spend it on things that are a little more long-term and a little more ambitious than people normally would. More like moon shots." The new company's CEO will be Arthur Levinson, who is currently the chairman of Apple and biotech company Genentech. Apple CEO Tim Cook said, "For too many of our friends and family, life has been cut short or the quality of their life is too often lacking. Art is one of the crazy ones who thinks it doesn't have to be this way."
New submitter Lee_Dailey sends this news from Quanta Magazine: "Physicists have discovered a jewel-like geometric object that dramatically simplifies calculations of particle interactions and challenges the notion that space and time are fundamental components of reality. 'This is completely new and very much simpler than anything that has been done before,' said Andrew Hodges, a mathematical physicist at Oxford University who has been following the work. The revelation that particle interactions, the most basic events in nature, may be consequences of geometry significantly advances a decades-long effort to reformulate quantum field theory, the body of laws describing elementary particles and their interactions. Interactions that were previously calculated with mathematical formulas thousands of terms long can now be described by computing the volume of the corresponding jewel-like "amplituhedron," which yields an equivalent one-term expression."
Months after a successful test launch of the Antares rocket with a dummy payload, today Orbital Sciences Corp successfully launched their demo cargo mission to the ISS. Their Cygnus resupply craft detached from the second stage and at 11:33 a.m. deployed its solar array. From NASA: "Solar array deployment is complete for Orbital Sciences Corp.'s Cygnus spacecraft, now traveling 17,500 mph in Earth's orbit to rendezvous with the International Space Station on Sunday, Sept. 22, for a demonstration resupply mission. The spacecraft will deliver about 1,300 pounds (589 kilograms) of cargo, including food and clothing, to the space station's Expedition 37 crew, who will grapple and attach the capsule using the orbiting laboratory's robotic arm." There's an updates weblog, and some pictures.
RocketAcademy writes "The Defense Advanced Research Projects Agency has launched a new program to develop a reusable first-stage launch vehicle. Experimental Spaceplane 1 (XS-1) would be capable of flying 10 times in 10 days, with a small ground crew, reaching speeds of Mach 10, and deploying a small upper stage to place a 3,000-pound satellite into orbit. The XS-1 program is complementary to the Air Force's Boeing X-37, which is a reusable upper stage. The X-37 is currently launched by an expendable Atlas rocket but could be launched by a vehicle derived from XS-1 in the future. Military planners have dreamed of a two-stage, fully reusable Military Spaceplane for several years, but funding has not materialized up to now."
New submitter sandbagger writes "Stephen Harper and the Canadian government have made headlines several times for stifling opinions that dissent with their own. This also applies to respected, peer-reviewed science. Canadian scientists have chafed at being gagged and having evidence take a back seat when forming policy, so they're grabbing their slide rules and marching in protest. 'Hundreds of participants gathered in 17 cities for rallies on Monday. In Toronto some donned lab coats while in Vancouver protesters were seen wearing gags adorned with the Conservative Party logo – a reference to the alleged muzzling of federal scientists by political overseers. ... Dr. Gibbs and colleagues said they hoped the rallies would alert the public to scientists’ concerns that the federal government has shifted funding markedly toward commercially driven research at the expense of public-interest science. ... Dr. Gibbs said her group would consult with the Canadian research community and look to other countries in trying to craft recommended policies for science in government. In recent years explicit scientific integrity rules have been adopted by many U.S. federal departments and agencies, after accusations of censorship and politicization of science during the administration of former president George W. Bush. 'Canadian scientists are where American scientists were maybe a decade ago,' said Michael Halpern, a Washington, D.C.-based program manager with the Union of Concerned Scientists. 'They're trying to figure out how to protect themselves from a government that’s increasingly focused on message control over a more open discussion of the facts.'"
vinces99 writes "As NOAA announces a new record for the extent of sea ice in Antarctica, a new modeling study to be published in the Journal of Climate shows that stronger polar winds lead to an increase in Antarctic sea ice, even when Earth's overall climate is getting warmer. The study (abstract) by Jinlun Zhang, a University of Washington oceanographer, shows that stronger westerly winds swirling around the South Pole can explain 80 percent of the increase in Antarctic sea ice volume during the past three decades. The polar vortex that swirls around the South Pole is not just stronger than it was when satellite records began in the 1970s, it also shoves the sea ice together to cause ridging. Stronger winds also drive ice faster, which leads to still more deformation and ridging. This creates thicker, longer-lasting ice, while exposing surrounding water and thin ice to the blistering cold winds that cause more ice growth. A computer simulation that includes detailed interactions between wind and sea shows that thick ice — more than 6 feet deep — increased by about 1 percent per year from 1979 to 2010, while the amount of thin ice stayed fairly constant. The end result is a thicker, slightly larger ice pack that lasts longer into the summer."
An anonymous reader writes "'The smaller an animal is, and the faster its metabolic rate, the slower time passes for it, scientists found. This means that across a wide range of species, time perception is directly related to size, with animals smaller than us seeing the world in slow motion.' No wonder it took so long to grow up!" Here's the original paper.
sciencehabit writes "Ever send a bottle of wine back at a restaurant? If you weren't just being a pretentious snob, then it was probably because the wine seemed 'corked' — had a musty odor and didn't taste quite right. Most likely, the wine was contaminated with a molecule called 2,4,6-trichloroanisole (TCA), the main cause of cork taint. But a new study by Japanese researchers concludes that you do not smell TCA directly; rather, TCA blocks up your sense of smell and distorts your ability to detect odors. The findings could help the food and beverage industry improve its products and lead to less embarrassment for both you and your waiter."
minty3 writes "The new snail species, Zospeum tholussum, has no eyes or pigmentation on its shell and is considered to be a true eutroglobiont or cave-dweller. It was found by a team of cavers and biologists from the Croatian Biospeleological Society. While on an expedition to determine the cave’s depth, they collected animal specimens including one of the previously unidentified snails along with eight of its empty shells."