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Science

Bees Communicate With Electric Fields 133

Posted by samzenpus
from the buzz-of-buzzing dept.
sciencehabit writes "The electric fields that build up on honey bees as they fly, flutter their wings, or rub body parts together may allow the insects to talk to each other, a new study suggests. Tests show that the electric fields, which can be quite strong, deflect the bees' antennae, which, in turn, provide signals to the brain through specialized organs at their bases. Antenna deflections induced by an electrically charged honey bee wing are about 10 times the size of those that would be caused by airflow from the wing fluttering at the same distance—a sign that electrical fields could be an important signal."
Government

Air Force Looking To Beef Up Spacecraft Network Security 31

Posted by Soulskill
from the phishing-the-space-station dept.
coondoggie writes "How is spacecraft development — from the space parts supply chain to actual space operations — protected from those who would try to penetrate or disrupt the networks involved in that process? The U.S. Air Force Research Laboratory (AFRL) has put out a call for research to understand that security scenario. They say, 'we are much less concerned about information on the broader themes of cyber-security but rather those that pertain to the mission of the spacecraft, the spacecraft as a platform, the systems that constitute the spacecraft, the computers and their software, the busses and networks within, and the elements that interface to the spacecraft.'"
Science

Washington's Exploding Manholes Explained? 112

Posted by Soulskill
from the it-was-aliens-all-along dept.
sciencehabit writes "Researchers who mapped methane concentrations on the streets of the nation's capital found natural gas leaks everywhere, at concentrations of up to 50 times the normal background levels. The leaking gas wastes resources, enhances ozone production, and exacerbates global warming—not to mention powering the city's infamous exploding manholes. Most of the natural gas we burn for heat and on stovetops in the United States is methane, a simple carbon atom surrounded by four hydrogens. Carbon dioxide gets more press, but methane is the more powerful agent of global warming, 21 times more effective than carbon dioxide at trapping heat in the atmosphere. And methane levels are rising fast. Methane levels in the atmosphere were just 650 parts per billion a century ago, versus 1800 ppb today."
Crime

Brain Scans Predict Which Criminals Are More Likely To Re-offend 187

Posted by Soulskill
from the computer-says-you-are-not-yet-rehabilitated dept.
ananyo writes "In a twist that evokes the dystopian science fiction of writer Philip K. Dick, neuroscientists have found a way to predict whether convicted felons are likely to commit crimes again from looking at their brain scans. Convicts showing low activity in a brain region associated with decision-making and action are more likely to be arrested again, and sooner. The researchers studied a group of 96 male prisoners just before their release. They used functional magnetic resonance imaging (fMRI) to scan the prisoners' brains during computer tasks in which subjects had to make quick decisions and inhibit impulsive reactions. The scans focused on activity in a section of the anterior cingulate cortex (ACC), a small region in the front of the brain involved in motor control and executive functioning. The researchers then followed the ex-convicts for four years to see how they fared. Among the subjects of the study, men who had lower ACC activity during the quick-decision tasks were more likely to be arrested again after getting out of prison, even after the researchers accounted for other risk factors such as age, drug and alcohol abuse and psychopathic traits."
Earth

PlanetIQ's Plan: Swap US Weather Sats For Private Ones 128

Posted by timothy
from the why-not-just-use-google-earth dept.
We've mentioned over the last few years several times the funding problems that mean the U.S. government's weather satellite stable is thinner than we might prefer. A story at the Weather Underground outlines the plan of a company called PlanetIQ to fill the needs met with the current constellation of weather sats with private ones instead. From the article, describing testimony last week before the House Appropriations Subcommittee on Commerce: "PlanetIQ's solution includes launching a constellation of 12 small satellites in low-Earth orbit to collect weather data, which PlanetIQ says the federal government could access at less cost and risk than current government-funded efforts. ... [PlanetIQ Anne Hale] Miglarese added that within 28 to 34 months from the beginning of their manufacture, all 12 satellites could be in orbit. As for the cost, she says, "We estimate that for all U.S. civilian and defense needs globally for both terrestrial and space weather applications, the cost to government agencies in the U.S. will be less than $70 million per year. As the satellites collect data, PlanetIQ would sell the data to government weather services around the world as well as the U.S. Air Force. The most recently launched polar-orbiting satellite, sent into space by the U.S. in 2011, cost $1.5 billion."
Image

James Cameron Gives Sub To Woods Hole Oceanographic Institution 35

Posted by samzenpus
from the going-deep dept.
A year ago James Cameron made history by traveling solo almost seven miles deep in an area of the Pacific Ocean known the Mariana Trench’s Challenger Deep. He made the trip in a submersible he helped design, the Deepsea Challenger submersible system and science platform. To celebrate the anniversary, Cameron is forming a partnership with Woods Hole Oceanographic Institution (WHOI), and donating the Deep Sea Challenger. From the press release: "Cameron will transfer the Deepsea Challenger to Woods Hole, where WHOI scientists and engineers will work with Cameron and his team to incorporate the sub’s numerous engineering advancements into future research platforms and deep-sea expeditions. This partnership harnesses the power of public and private investment in supporting deep-ocean science. “The seven years we spent designing and building the Deepsea Challenger were dedicated to expanding the options available to deep-ocean researchers. Our sub is a scientific proof-of-concept, and our partnership with the Woods Hole Oceanographic Institution is a way to provide the technology we developed to the oceanographic community,” says Cameron. James even sent us a few early drawings of the Deepsea Challenger that he made during a conversation with oceanographer Don Walsh in November 2003. The sketches are proof that many great ideas start out on napkins or lined paper.
Music

Scientists Study Getting an Unwanted Tune Out of Your Head 219

Posted by samzenpus
from the co-stan-za dept.
Hugh Pickens writes writes "Richard Gray reports that scientists have found a way to help anyone plagued by those annoying tunes that lodge themselves inside our heads and repeat on an endless loop — when snippets of a catchy song inexplicably play like a broken record in your brain. The solution can be to solve some tricky anagrams to force the intrusive music out of your working memory allowing the music to be replaced with other more amenable thoughts. 'The key is to find something that will give the right level of challenge,' says Dr Ira Hyman, a music psychologist at Western Washington University who conducted the research. 'If you are cognitively engaged, it limits the ability of intrusive songs to enter your head.' Hyman says that the problem, called involuntary memory retrieval, is that something we can do automatically like driving or walking means you are not using all of your cognitive resource, so there is plenty of space left for that internal jukebox to start playing. Dr Vicky Williamson, a music psychologist at Goldsmiths, University of London, says that the most likely songs to get stuck are those that are easy to hum along to or sing and found that that Lady Gaga was the most common artist to get stuck in people's heads, with four of her catchy pop songs being the most likely to become earworms – Alejandro, Bad Romance, Just Dance and Paparazzi. Other surveys have reported Abba songs such as Waterloo, Changes by David Bowie or the Beatles' Hey Jude."
Space

Landsat's First Images Show Rocky Mountains In Stunning Detail 63

Posted by samzenpus
from the more-real-than-real dept.
Zothecula writes "We haven't heard anything from NASA's Landsat Data Continuity Mission (LDCM) spacecraft since its launch in February, but the satellite is now ready to start sending its first images back home. The first batch of photos are part of a three-month testing period, and show the meeting of the Great Plains with the Front Ranges of the Rocky Mountains in Wyoming and Colorado. Viewed from space, it's already a pretty spectacular scene, but the images from the LDCM managed to enhance it even further."
Science

Graphene Aerogel Takes World's Lightest Material Crown 198

Posted by samzenpus
from the I-don't-feel-a-thing dept.
cylonlover writes "Not even a year after it claimed the title of the world's lightest material, aerographite has been knocked off its crown by a new aerogel made from graphene. Created by a research team from China's Zhejiang University in the Department of Polymer Science and Engineering lab headed by Professor Gao Chao, the ultra-light aerogel has a density of just 0.16 mg/cm3, which is lower than that of helium and just twice that of hydrogen."
Japan

Major Find By Japanese Scientists May Threaten Chinese Rare Earth Hegemony 189

Posted by samzenpus
from the spread-the-wealth dept.
cold fjord writes "It looks like deep sea exploration may pay off big time as Japanese scientists have located rich deposits of rare earth elements on the sea floor in Japanese Exclusive Economic Zone waters, following up on their find two years ago of huge deposits of rare earths in mid-Pacific waters. The cumulative effect of these finds could significantly weaken Chinese control of 90% of the world supply of rare earth metals, which the Chinese have been using to flex their muscles. The concentration of rare earth metals in the Japanese find is astonishing: up to 6,500 ppm, versus 500-1,000 ppm for Chinese mines. The newly identified deposits are just 2-4 meters below sea floor which could make for relatively easy mining compared to the 10+ meters they were expecting... if they can get there. The fact that the deposits are 5,700 meters deep means there is just one or two little problems to resolve : 'A seabed oil field has been developed overseas at a depth of 3,000 meters. . . But the development of seabed resources at depths of more than 5,000 meters has no precedent, either at home or abroad. There remains a mountain of technological challenges, including how to withstand water pressure and ocean currents and how to process the mining products in the ocean, sources said.'"
Programming

SpaceX: Lessons Learned Developing Software For Space Vehicles 160

Posted by timothy
from the no-one-can-hear-you-bleep-in-space dept.
jrepin writes "On day two of the 2013 Embedded Linux Conference, Robert Rose of SpaceX spoke about the 'Lessons Learned Developing Software for Space Vehicles.' In his talk, he discussed how SpaceX develops its Linux-based software for a wide variety of tasks needed to put spacecraft into orbit—and eventually beyond. Linux runs everywhere at SpaceX, he said, on everything from desktops to spacecraft."
Space

Meteor Streaks Over American East Coast 111

Posted by timothy
from the missed-the-memo-re-flyover-country dept.
California doesn't get all the action; The Washington Post is one of many news outlets reporting that the east coast of North America got a good view of a meteor, with more than 300 sightings from Canada to Florida. Did you see it? If so, did you have your dashcam on? Update: 03/23 13:43 GMT by T : The meteor was captured at least by some security cameras, as reported by The Guardian.
Government

DARPA Tackles Machine Learning 95

Posted by samzenpus
from the learn-faster dept.
coondoggie writes "Researchers at DARPA want to take the science of machine learning — teaching computers to automatically understand data, manage results and surmise insights — up a couple notches. Machine learning, DARPA says, is already at the heart of many cutting edge technologies today, like email spam filters, smartphone personal assistants and self-driving cars. 'Unfortunately, even as the demand for these capabilities is accelerating, every new application requires a Herculean effort. Even a team of specially-trained machine learning experts makes only painfully slow progress due to the lack of tools to build these systems,' DARPA says."
Medicine

Most UK GPs Have Prescribed Placebos 240

Posted by samzenpus
from the balance-the-humors dept.
Techmeology writes "In a survey of UK GPs, 97% said they'd recommended placebo treatments to their patients, with some doctors telling patients that the treatment had helped others without telling them that it was a placebo. While some doctors admitted to using a sugar pill or saline injection, some of the placebos offered had side effects such as antibiotic treatments used as placebos for viral infections."
Space

Study Finds Universe Is 100 Million Years Older Than Previously Thought 245

Posted by samzenpus
from the you-don't-look-a-day-over-13-billion dept.
skade88 writes "Reuters is reporting that scientists now say the universe is 100 million years older than previously thought after they took a closer look at leftover radiation from the Big Bang. This puts the age of the Universe at 13.8 billion years. The new findings are the direct results from analyzing data provided by the European Space Agency's Planck spacecraft. The spacecraft is providing the most detailed look to date at the remnant microwave radiation that permeates the universe. 'It's as if we've gone from a standard television to a high-definition television. New and important details have become crystal clear,' Paul Hertz, NASA's director of astrophysics, told reporters on a conference call."
NASA

Political Pressure Pushes NASA Technical Reports Offline 140

Posted by timothy
from the beware-the-trade-federation dept.
Trepidity writes "The extensive NASA Technical Report Archive was just taken offline, following pressure from members of U.S. Congress, worried that Chinese researchers could be reading the reports. U.S. Representative Frank Wolf (R-VA) demanded that 'NASA should immediately take down all publicly available technical data sources until all documents that have not been subjected to export control review have received such a review,' and NASA appears to have complied. Although all reports are in the public domain, there doesn't appear to be a third-party mirror available (some university libraries do have subsets on microfiche)."
Displays

New Advance In 3D TV Technology 143

Posted by samzenpus
from the more-real-than-real dept.
sciencehabit writes "If you've pondered whether to sink a cool couple of grand into a fancy new three-dimensional TV but didn't want to mess around with those dorky glasses, you may want to sit tight for a few more years. Researchers at Hewlett Packard Laboratories in Palo Alto, California, report that they've come up with a new 3D technology that not only doesn't require viewers to wear special glasses, but it also can be viewed from a wide variety of angles. The advance could propel the development of mobile 3D devices as well as TVs."
NASA

Bezos Expeditions Recovers Pieces of Apollo 11 Rockets 119

Posted by samzenpus
from the treasure-finder dept.
skade88 writes "Jeff Bezos has been spending his time fishing up parts of the Apollo 11 rockets. From his blog 'What an incredible adventure. We are right now onboard the Seabed Worker headed back to Cape Canaveral after finishing three weeks at sea, working almost 3 miles below the surface. We found so much. We've seen an underwater wonderland – an incredible sculpture garden of twisted F-1 engines that tells the story of a fiery and violent end, one that serves testament to the Apollo program. We photographed many beautiful objects in situ and have now recovered many prime pieces. Each piece we bring on deck conjures for me the thousands of engineers who worked together back then to do what for all time had been thought surely impossible.'"
NASA

Voyager 1 Officially Exits Our Solar System 237

Posted by Soulskill
from the don't-forget-to-write dept.
An anonymous reader writes "A new study released today (abstract) indicates that the Voyager 1 spacecraft has become the first man-made object to exit our solar system. Instrumentation data sent back to NASA indicate the historic event likely occurred on August 25, 2012, evidenced by drastic changes in radiation levels as the craft ventured past the heliopause. What remains to be seen, however, is whether Voyager 1 has actually made it to true interstellar space, or whether it has entered a separate, undefined region beyond our solar system. Either way, the achievement is truly monumental. 'It's outside the normal heliosphere, I would say that. We're in a new region,' said Bill Webber, professor emeritus of astronomy at New Mexico State University in Las Cruces. 'And everything we're measuring is different and exciting.'" Update: 03/20 20:44 GMT by S : Reader skade88 points out that the JPL Voyager team is not so sure: "It is the consensus of the Voyager science team that Voyager 1 has not yet left the solar system or reached interstellar space. In December 2012, the Voyager science team reported that Voyager 1 is within a new region called 'the magnetic highway' where energetic particles changed dramatically. A change in the direction of the magnetic field is the last critical indicator of reaching interstellar space and that change of direction has not yet been observed." So we'll probably be hearing about this again in a couple years.
Math

Pierre Deligne Wins Abel Prize For Contributions To Algebraic Geometry 55

Posted by Unknown Lamer
from the making-you-feel-dumb dept.
ananyo writes "Belgian mathematician Pierre Deligne completed the work for which he became celebrated nearly four decades ago, but that fertile contribution to number theory has now earned him the Abel Prize, one of the most prestigious awards in mathematics. The prize is worth 6 million Norwegian krone (about US$1 million). In short, Deligne proved one of the four Weil conjectures (he proved the hardest; his mentor, Alexander Grothendieck, had proved the second conjecture in 1965) and went on to tools such as l-adic cohomology to extend algebraic geometry and to relate it to other areas of maths. 'To some extent, I feel that this money belongs to mathematics, not to me,' Deligne said, via webcast."
Science

Activity of Whole Fish Brains Mapped Second To Second 56

Posted by Soulskill
from the pretty-pictures dept.
ananyo writes "Researchers have imaged an entire vertebrate brain at the level of single neurons for the first time. A team of scientists based at the Janelia Farm Research Campus in Ashburn, Virginia, were able to record activity across the whole brain of a fish embryo almost every second, detecting 80% of its 100,000 neurons. The work is a first step towards mapping the activity of a whole human brain — which contains about 85,000 times more neurons than the zebrafish brain. The imaging system relies on a genetically engineered zebrafish (Danio rerio). The fish's neurons make a protein that fluoresces in response to fluctuations in the concentration of calcium ions, which occur when nerve cells fire. A microscope sends sheets of light rather than a conventional beam through the fish's brain, and a detector captures the signals like a viewer watching a cinema screen. The system records activity from the full brain every 1.3 seconds."
Earth

Sewage Plants Struggle To Treat Fracking Wastewater 264

Posted by Soulskill
from the who-needs-water-anyway dept.
MTorrice writes "When energy companies extract natural gas trapped deep underground using hydraulic fracturing, they're left with water containing high levels of pollutants, including benzene and barium. Sometimes the gas producers dispose of this fracking wastewater by sending it to treatment plants that deal with sewage and water from other industrial sources. But a new study (abstract) suggests that the plants can't handle this water's high levels of contaminants: Water flowing out of the plants into the environment still has elevated levels of the chemicals from natural gas production."
Space

New Insights Help Shed Light On Star's Death That Created Kepler's Super Nova 13

Posted by Unknown Lamer
from the very-big-boom dept.
skade88 writes "Wired has a good article that covers the origins of the white dwarf super nova Johannes Kepler observed in 1604. From the article: 'Up until now, it was unclear what lead to the star's explosion. New Chandra data suggests that, at least in the case of Kepler's remnant, the white dwarf grabbed material from its companion star. The disk-shaped structure seen near the center suggests that the supernova explosion hit a ring of gas and dust that would have formed, like water circling a drain, as the white dwarf sucked material away from its neighbor. In addition, magnesium is not an element formed in great abundances during Type 1a supernovas, suggesting it came from the companion star. Whether or not Kepler's supernova is a typical case remains to be seen. '"
Science

Roadkill Forcing Cliff Swallows To Evolve 387

Posted by Unknown Lamer
from the also-evolved-laser-eyes dept.
sciencehabit writes "Cliff swallows that build nests that dangle precariously from highway overpasses have a lower chance of becoming roadkill than in years past thanks to a shorter wingspan that lets them dodge oncoming traffic. That's the conclusion of a new study based on 3 decades of data collected on one population of the birds. The results suggest that shorter wingspan has been selected for over this time period because of the evolutionary pressure put on the population by cars."
Moon

A Moon Base Made From Lunar Dust 115

Posted by samzenpus
from the using-what-you-got dept.
Zothecula writes "The race to build a manned research station on the moon has been slowly picking up steam in recent years, with several developed nations actively studying a variety of construction methods. In just the past few months, the European Space Agency revealed a design involving 3D-printed structures and the Russian Federal Space Agency announced plans for a moon base by 2037. Now international design agency, Architecture Et Cetera (A-ETC), has thrown its hat into the ring with a proposal for SinterHab, a moon base consisting of bubble-like compartments coated in a protective layer of melted lunar dust."
Biotech

"Lazarus Project" Clones Extinct Frog 154

Posted by samzenpus
from the welcome-back dept.
cylonlover writes "Australian scientists have successfully revived and reactivated the genome of an extinct frog. The 'Lazarus Project' team implanted cell nuclei from tissues collected in the 1970s and kept in a conventional deep freezer for 40 years into donor eggs from a distantly-related frog. Some of the eggs spontaneously began to divide and grow to early embryo stage with tests confirming the dividing cells contained genetic material from the extinct frog. The extinct frog in question is the Rheobatrachus silus, one of only two species of gastric-brooding frogs, or Platypus frogs, native to Queensland, Australia. Both species became extinct in the mid-1980s and were unique amongst frog species for the way in which they incubated their offspring."
ISS

Sarah Brightman's ISS Trip In Peril 105

Posted by samzenpus
from the no-space-for-you dept.
RocketAcademy writes "Actress/singer Sarah Brightman's trip to the International Space Station may not happen in 2015 as scheduled. Space Adventures works with the Russian Federal Space Agency (Roscosmos) to fly private citizens like Brightman on Soyuz taxi flights. Those taxi missions normally last eight days, but NASA and Roscosmos are considering a plan to extend the 2015 taxi flight to one month, so it can carry a scientist to perform some additional research aboard ISS. If that happens, Brightman will lose her seat. This situation points to the need for more flexible transportation options and new orbital facilities which are not subject to the same operational restrictions as ISS. SpaceX, Boeing, and Sierra Nevada are working on the transportation problem, while Bigelow Aerospace expects to begin launching its Space Station Alpha in 2015. So, the era of citizen astronauts visiting ISS may be drawing to a close."
Science

Did Large Eyes Lead To Neanderthals' Demise? 139

Posted by samzenpus
from the all-the-better-to-see-you-with dept.
An anonymous reader writes "Bigger eyes and a corresponding greater allocation of the brain to process visual information is the most recent theory about the reasons that led to the extinction of Neanderthals, our closest relatives. Neanderthals split from the primate line that gave rise to modern humans about 400,000 years ago. This group then moved to Eurasia and completely disappeared from the world about 30,000 years back. Other studies have shown that Neanderthals might have lived near the Arctic Circle around 31,000 to 34,000 years ago."
Science

Nanoscale 3D Printer Now Commercially Available 127

Posted by samzenpus
from the small-jobs dept.
kkleiner writes "Now the field of 3D printing has advanced so far that a company called Nanoscribe is offering one of the first commercially available 3D printers for the nanoscale. Nanoscribe's machine can produce tiny 3D printed objects that are only the width of a single human hair. Amazingly this includes 3D printed objects such as spaceships, micro needles, or even the empire state building."
Science

How Scientists Know An Idea Is a Good One 140

Posted by Soulskill
from the does-it-involve-lasers dept.
Physicist Chris Lee explains one of the toughest judgment calls scientists have to make: figuring out if their crazy ideas are worth pursuing. He says: "Research takes resources. I don't mean money—all right, I do mean money—but it also requires time and people and lab space and support. There is a human and physical infrastructure that I have to make use of. I may be part of a research organization, but I have no automatic right of access to any of this infrastructure. ... This also has implications for scale. A PhD student has the right to expect a project that generates a decent body of work within those four years. A project that is going to take eight years of construction work before it produces any scientific results cannot and should not be built by a PhD student. On the other hand, a project that dries up in two years is equally bad. ... the core idea also needs to be structured so, should certain experiments not work, they still build something that can lead to experiments which do work. Or, if the cool new instrument we want to build can't measure exactly what I intended, there are other things it can measure. One of those other things must be fairly certain of success. To put it bluntly: all paths must lead to results of some form."
Democrats

Obama Wants To Fund Clean Energy Research With Oil & Gas Funds 409

Posted by Soulskill
from the laundering-dirty-money dept.
An anonymous reader writes "The Obama Administration has put forth a proposal to collect $2 billion over the next 10 years from revenues generated by oil and gas development to fund scientific research into clean energy technologies. The administration hopes the research would help 'protect American families from spikes in gas prices and allow us to run our cars and trucks on electricity or homegrown fuels.' In a speech at Argonne National Laboratory, Obama said the private sector couldn't afford such research, which puts the onus on government to keep it going. Of course, it'll still be difficult to get everyone on board: 'The notion of funding alternative energy research with fossil fuel revenues has been endorsed in different forms by Republican politicians, including Alaskan senator Lisa Murkowsi. But the president still faces an uphill battle passing any major energy law, given how politicized programs to promote clean energy have become in the wake of high-profile failures of government-backed companies.'"
Communications

FCC Guidance On Radio For Commercial Space Operations Falls Short 48

Posted by Soulskill
from the moving-at-the-speed-of-government dept.
RocketAcademy writes "The Federal Communications Commission has issued a Public Notice to help commercial space companies obtain use of communications frequencies for launch, operations, and reentry. Commercial space companies can obtain the use of government frequencies on a temporary, non-interference basis through the FCC's Experimental Authorization process. Experimental Authorizations are valid for a six-month period from the date of grant and are renewable, but applicants must obtain a new authorization for each launch and must apply 90 days in advance. Unfortunately, this requirement does not meet the needs of suborbital launch providers who expect to fly several times per day and schedule launches as needed, on very short notice."
The Internet

Why Trolls Win With Toxic Comments 298

Posted by Soulskill
from the bring-you-down-to-their-level-and-beat-you-with-experience dept.
Hugh Pickens writes "The Web is a place for unlimited exchange of ideas. But according to an NPR report, researchers have found that rude comments on articles can change the way we interpret the news. 'It's a little bit like the Wild West. The trolls are winning,' says Dominique Brossard, co-author of the study on the so-called 'Nasty Effect.' Researchers worked with a science writer to construct a balanced news story on the pros and cons of nanotechnology, a topic chosen so that readers would have to make sense of a complicated issue with low familiarity. They then asked 1,183 subjects to review the blog post from a Canadian newspaper that discussed the water contamination risks of nanosilver particles and the antibacterial benefits. Half saw the story with polite comments, and the other half saw rude comments, like: 'If you don't see the benefits of using nanotechnology in these products, you're an idiot.' People that were exposed to the polite comments didn't change their views really about the issue covering the story, while the people that did see the rude comments became polarized — they became more against the technology that was covered in the story. Brossard says we need to have an anchor to make sense of complicated issues. 'And it seems that rudeness and incivility is used as a mental shortcut to make sense of those complicated issues.' Brossard says there's no quick fix for this issue (PDF), and while she thinks it's important to foster conversation through comments sections, every media organization has to figure out where to draw the line when comments get out of control. 'It's possible that the social norms in this brave new domain will change once more — with users shunning meanspirited attacks from posters hiding behind pseudonyms and cultivating civil debate instead,' writes Brossard. 'Until then, beware the nasty effect.'"
Space

A Quarter of Sun-Like Stars Host Earth-Size Worlds 105

Posted by Soulskill
from the but-can-we-drill-for-oil-on-them? dept.
astroengine writes "Although there appears to be a mysterious dearth of exoplanets smaller than Earth, astronomers using data from NASA's Kepler space telescope have estimated that nearly a quarter of all sun-like stars in our galaxy play host to worlds 1-3 times the size of our planet. These astonishing results were discussed by Geoff Marcy, professor of astronomy at the University of California, Berkeley, during a talk the W. M. Keck Observatory 20th Anniversary Science Meeting on Thursday. '23 percent of sun-like stars have a planet within (1-2.8 Earth radii) just within Mercury's orbit,' said Marcy. 'I'll say that again, because that number really surprised me: 23 percent of sun-like stars have a nearly-Earth-sized planet orbiting in tight orbits within 0.25 AU of the host stars.'"
News

New Process For Nanoscale Filtration Holds Promise of Cheap, Clean Water 116

Posted by Soulskill
from the fighting-the-evil-oceans dept.
New submitter Spinnakker writes "Lockheed Martin, traditionally known for its development of military systems and aircraft, has developed a process for perforating graphene (carbon sheets only one atom thick) that could potentially reduce the energy required for desalination by two orders of magnitude. The process tailors the hole size to the molecules being separated. In the case of desalination, one would create holes in the graphene large enough to allow water to pass but small enough to block the salt molecules. The advantage to using graphene comes from how extremely thin the material is compared to traditional filters. The thinner the filter, the less energy is required to facilitate reverse osmosis."
Biotech

Most Popular Human Cell In Science Gets Sequenced 63

Posted by Soulskill
from the this-post-was-written-with-HeLa-cells dept.
ananyo writes "The research world's most famous human cell has had its genome decoded, and it's a mess. German researchers this week report the genome sequence of the HeLa cell line, which originates from a deadly cervical tumor taken from a patient named Henrietta Lacks (Slashdot has previously noted a film made about the cells and there's a recent mutli-award winning book on Lacks). Established the same year that Lacks died in 1951, HeLa cells were the first human cells to grow well in the laboratory. The cells have contributed to more than 60,000 research papers, the development of a polio vaccine in the 1950s and, most recently, an international effort to characterize the genome, known as ENCODE. The team's work shows that HeLa cells contain one extra version of most chromosomes, with up to five copies of some, and raises further questions over the widespread use of HeLa cells as models for human cell biology."
Science

Berkeley Scientists Plan To 'Jurassic Park' Some Extinct Pigeons Back To Life 209

Posted by Soulskill
from the hold-on-to-your-butts dept.
phenopticon writes "Researchers at Berkeley are attempting to revive the extinct passenger pigeon in order to set up a remote island theme park full of resurrected semi-modern extinct animals. (Well, maybe not that last part.) Quoting: 'About 1,500 passenger pigeons inhabit museum collections. They are all that's left of a species once perceived as a limitless resource. The birds were shipped in boxcars by the tons, sold as meat for 31 cents per dozen, and plucked for mattress feathers. But in a mere 25 years, the population shrank from billions to thousands as commercial hunters decimated nesting flocks. Martha, the last living bird, took her place under museum glass in 1914. ... Ben Novak doesn't believe the story should end there. The 26-year-old genetics student is convinced that new technology can bring the passenger pigeon back to life. "This whole idea that extinction is forever is just nonsense," he says. Novak spent the last five years working to decipher the bird's genes, and now he has put his graduate studies on hold to pursue a goal he'd once described in a junior high school fair presentation: de-extinction. ... Using next-generation sequencing, scientists identified the passenger pigeon's closest living relative: Patagioenas fasciata, the ubiquitous band-tailed pigeon of the American west. This was an important step. The short, mangled DNA fragments from the museums' passenger pigeons don't overlap enough for a computer to reassemble them, but the modern band-tailed pigeon genome could serve as a scaffold. Mapping passenger pigeon fragments onto the band-tailed sequence would suggest their original order."
Australia

Windfarm Sickness Spreads By Word of Mouth 482

Posted by Soulskill
from the people-who-are-allergic-to-ideas dept.
eldavojohn writes "Just like the many stories surrounding alleged 'Wi-Fi sickness,' research is now showing that windfarm sickness spreads by word of mouth instead of applying universally to windfarms. Areas that had never had any noise or health complaints were suddenly experiencing them after 2009 when anti-wind groups targeted populations surrounding windfarms. From the article, 'Eighteen reviews of the research literature on wind turbines and health published since 2003 had all reached the broad conclusion that there was very little evidence they were directly harmful to health.' While there's unfortunately no way to prove that someone is lying about how they feel, it's likely a mixture of confirmation bias, psychosomatic response, hypochondria, greed and hatred of seeing windmills on the horizon that drives this phenomenon."
Earth

Microbes Likely Abundant Hundreds of Meters Below Sea Floor 68

Posted by samzenpus
from the hollow-world dept.
sciencehabit writes "Samples drilled from 3.5-million-year-old seafloor rocks have yielded the strongest evidence yet that a variety of microorganisms live deeply buried within the ocean's crust. These microbes make their living by consuming methane and sulfate compounds dissolved in the mineral-rich waters flowing through the immense networks of fractures in the crust. The new find confirms that the ancient lavas formed at midocean ridges and found throughout deep ocean basins are by volume the largest ecosystem on Earth, scientists say."
Science

Growing Consensus: The Higgs Boson Exists 254

Posted by timothy
from the actually-they-just-like-to-play-with-equipment dept.
It's a long, slow road from tentative discovery, to various forms of peer review, to wide acceptance, never mind theory and experimental design, but recent years' work to pin down the Higgs Boson seem to be bearing fruit in the form of cautious announcements. FBeans writes with excerpts from both the New York Times ("Physicists announced Thursday they believe they have discovered the subatomic particle predicted nearly a half-century ago, which will go a long way toward explaining what gives electrons and all matter in the universe size and shape.") and from The Independent ("Cern says that confirming what type of boson the particle is could take years and that the scientists would need to return to the Large Hadron Collider — the world's largest 'atom smasher' — to carry out further tests. This will measure at what rate the particle decays and compare it with the results of predictions, as theorised by Edinburgh professor Peter Higgs 50 years ago.")
Math

10 Ways To Celebrate International Pi Day 180

Posted by timothy
from the meteor-tail-pink dept.
We'd like to wish you a happy Pi Day. It may be just as arbitrary as some other holidays (though perhaps easier to schedule than some), but any excuse for some delicious food is one I'll take. Reader alphadogg writes with a few suggestions of ways to take part in this convenient celebration of both rationality and irrationality. (And lead your comment with the number of digits you can recite offhand ...)
NASA

NASA Restarts Plutonium Production 139

Posted by timothy
from the yeah-but-now-it's-non-planetary dept.
Celarent Darii writes "In what looks like good news for the American Space program, NASA has restarted production of plutonium. According to the article, after the closure of Savannah Rivers reactor NASA purchased plutonium from Russia, but since 2010 this was no longer possible. The native production of plutonium is a step forward for the space program to achieve the energy density for long term space exploration."
Medicine

Technology To Detect Alzheimer's Takes SXSW Prize 81

Posted by samzenpus
from the catching-it-early dept.
An anonymous reader writes "Being able to diagnose people with Alzheimer's disease years before debilitating symptoms appear is now a step closer to reality. Researchers behind Neurotrack, the technology startup that took the first place health prize at this year's South by Southwest (SXSW) startup accelerator in Austin. The company says their new technology can diagnose Alzheimer's disease up to six years before symptoms appear with 100% accuracy."
Space

ESA Seeks Software Innovators For Orbiting Laboratory 35

Posted by samzenpus
from the out-of-this-world dept.
First time accepted submitter Dario Izzo writes "The European Space Agency is giving the opportunity to try innovative software algorithms on board of one of its planned orbiting platform. The core architecture includes processors of unprecedented power (for space platforms) and it is fully reconfigurable even down to the operating system and firmware levels. Peripherals include cameras, GPS and attitude control. The full technical specifications are available via the European Space Agency web pages."
NASA

NASA IG Paints Bleak Picture For Agency Projects 73

Posted by samzenpus
from the outlook-not-so-good dept.
coondoggie writes "The bottom line for NASA as well as any number of government agencies in this new era of sequestration is money — and NASA in this case has too many programs chasing too few dollars. That is just one of a number of bleak conclusions NASA's Inspector General Paul Martin laid out to a Congressional hearing adding that 'declining budgets and fiscal uncertainties present the most significant external challenges to NASA's ability to successfully move forward on its many projects and programs. For the first 6 months of this year, NASA has operated under a continuing resolution that funds the Agency at last year's level of $17.8 billion. Moreover, NASA's share of the Government-wide sequestration cuts reduce that spending authority by $894 million.'"
Space

Astronomers Probe Mysterious Gas In Titan's Atmosphere 104

Posted by samzenpus
from the up-in-the-air dept.
sciencehabit writes "A fluorescent glow high in the atmosphere of Titan, Saturn's largest moon, signifies the presence of a gas that astronomers have yet to identify. The glow appears only on the daytime side of the moon at altitudes between 600 and 1250 kilometers, with the largest intensity occurring at an altitude of about 950 km. Detailed analyses reveal that the glow doesn't stem from a problem with the Saturn-orbiting Cassini craft, and it isn't associated with methane or any of the other hydrocarbons already identified as constituents of Titan's atmosphere."
Science

Manga Girls Beware: Extra Large Eyes Caused Neanderthal's Demise 290

Posted by Unknown Lamer
from the four-eyes-stays-alive dept.
An anonymous reader writes "The BBC reports on a new study of prehistoric skulls which suggests that Neanderthals became extinct because they had larger eyes than our species. As a consequence of having extra sized eyes, an average 6 millimeters larger in radius, more of their backside brain volume was devoted to seeing, at the expense of frontal lobe high-level processing of information and emotions. This difference affected their ability to innovate and socialize the way we, modern people (Homo Sapiens Sapiens) do. When the last Ice Age set on 28,000 years ago, Neanderthals had no sewn clothes and no large organized groups to rely on each other, hastening their fall. Yet, they were not stupid, brutish creatures as portrayed in Hollywood films, they were very, very smart, but not quite in the same league as the Homo Sapiens of Cromagnon."
Crime

Using Truth Serum To Confirm Insanity 308

Posted by Soulskill
from the i-swear-to-take-the-truth-pill,-the-whole-pill,-and-nothing-but-the-pill dept.
xclr8r writes "James Holmes representation did not enter a plea today in with regards to the Aurora, Co. Movie theater shooting so the Judge entered a plea of not guilty for James that could be changed at a later date by Holmes' attorney. The judge entered an advisory that if the plea was changed to Not Guilty by insanity that Holmes would be subject to a 'narcoanalytic interview' with the possibility of medically appropriate substances could be used e.g. so called truth serums. Holmes defense looks to have initially objected to this but as the previous article seems to infer that some compromises are being worked out. This certainly raises legal questions on how this is being played out 5th, 14th amendments. The legal expert in the second article states this is legal under Co. law but admits there's not a huge amount of cases regarding this. I was only able to find Harper v State where a defendant willingly underwent truth serum and wanted to submit the interview on his behalf but was rejected due to the judge not recognizing sufficient scientific basis to admit the evidence."
IBM

IBM Designing Superman Servers For World's Largest Telescope 67

Posted by Soulskill
from the batman-servers-were-too-melancholy dept.
Nerval's Lobster writes "How's this for a daunting task? By 2017, IBM must develop low-power microservers that can handle 10 times the traffic of today's Internet — and resist blowing desert sands, to boot. Sound impossible? Hopefully not. Those are the design parameters of the Square Kilometer Array (SKA) Project, the world's largest radio telescope, located in South Africa and Australia amid some of the world's most rugged terrain. It will be up to the SKA-specific business unit of South Africa's National Research Foundation, IBM, and ASTON (also known as the Netherlands Institute for Radio Astronomy) to jointly design the servers. Scientists from all three organizations will collaborate remotely and at the newly established ASTRON & IBM Center for Exascale Technology in Drenthe, the Netherlands. By peering into the furthest regions of space, the SKA project hopes to glimpse 'back in time,' where the radio waves from some of the earliest moments of the universe — before stars were formed — are still detectable. The hardware is powerful enough to pick up an airport radar on a planet 50 light-years away, according to the SKA team."

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