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Space

'Ring Rain' Quenches Saturn's Atmosphere 30

Posted by Soulskill from the can-i-borrow-somebody's-spaceship dept.
astroengine writes "Saturn's rings rain charged water particles down onto the gas giant's atmosphere, causing measurable changes in the planet's ionosphere. This intriguing conclusion comes from astronomers using the W. M. Keck Observatory atop Mauna Kea in Hawaii that observed dark bands forming in Saturn's ionosphere. 'Saturn is the first planet to show significant interaction between its atmosphere and ring system,' said James O'Donoghue, postgraduate researcher at the University of Leicester and lead author of a paper to appear this week in the journal Nature. 'The main effect of ring rain is that it acts to 'quench' the ionosphere of Saturn, severely reducing the electron densities in regions in which it falls.'"
Communications

European Researchers Propose Quantum Network Between Earth and ISS 209

Posted by Unknown Lamer from the accidentally-unleashes-cthulhu dept.
New kalalau_kane writes with this tidbit from Extreme Tech: "A group of European researchers has proposed the largest quantum network yet: Between Earth and the International Space Station. Such a network would see entangled photons transmitted over a distance of 250 miles — two or three times greater than previous quantum communication experiments. Not only will this be the first quantum experiment in space, but it will allow the scientists to see if entanglement really is instantaneous over long distances, and whether it's affected by gravity." The proposal (licensed CC BY).
Earth

Climate Change Will Boost Plane Turbulence, Suggests Study 184

Posted by timothy from the ready-made-climate-change-panic-movie-plot dept.
sciencehabit writes "Get used to a bumpy ride. The strength and frequency of atmospheric turbulence affecting transatlantic flights will increase by midcentury, a new study suggests. During winter months, 16 of the 21 often-used ways in which scientists measure turbulence suggest that the average intensity of the plane-rattling phenomenon will be between 10% and 40% stronger when CO2 concentrations are double their preindustrial value. Accordingly, the frequency of moderate-or-greater turbulence—intensities at which passengers will experience accelerations of 0.5 g or more, which are strong enough to toss items about the cabin—will rise by between 40% and 170%. As a result of pilots needing to dodge strong turbulence, flight paths will become longer, and fuel consumption and carbon dioxide emissions will increase—possibly leading to even more turbulence."
Transportation

"Dark Lightning" Could Expose Airline Passengers To Radiation 263

Posted by Unknown Lamer from the amtrak-doesn't-cause-cancer dept.
mbstone writes "Lightning researcher Joseph Dwyer of the Florida Institute of Technology claims that thunderstorms unleash sprays of X-rays and even intense bursts of gamma rays which could cause airline passengers to receive in an instant the maximum safe lifetime dose of ionizing radiation — the kind that wreaks the most havoc on the human body. Dwyer hopes his sensor aboard the Fermi Gamma-ray Space Telescope, will provide more data."
Businesses

Mendeley Acquired By Elsevier 87

Posted by Unknown Lamer from the that'll-be-$49-per-bookmark dept.
First time accepted submitter alexgieg writes "Academic reference manager Mendeley has announced they're joining Elsevier. They say this won't change anything for Mendeley users and that they're still committed to their Open API efforts, all the while acknowledging that Elsevier's reputation hasn't been the best as of late. If you're currently a Mendeley user will you continue using it from now on? Or will this move prompt you to start evaluating alternatives such as the Open Source, Firefox-based Zotero?"
Science

Fake Academic Journals Are a Very Real Problem 248

Posted by Unknown Lamer from the as-seen-on-tv dept.
derekmead writes "Because its become so easy to start a new publication in this new pixel-driven information economy, a new genre of predatory journals is emerging at an alarming rate. The New York Times just published an exposée of sorts on the topic. Its only an exposée of sorts because the scientific community knows about the problem. There are blogs set up to shame the fake journals into halting publishing. There are tutorials online for spotting a fake journal. There's even a list created and maintained by academic librarian Jeffrey Beall that keeps an eye on all the new fake journals coming out. When Beall started the list in 2010, it had only 20 entries. Now it has over 4,000. The journal Nature even published an entire issue on the problem a couple of weeks ago. So again, scientists know this is a problem. They just don't know how to stop it."
Mars

Intraterrestrials: Mars Life May Hide Deep Below 79

Posted by samzenpus from the mole-man dept.
astroengine writes "Almost every month we see news dispatches from the Mars where the nuclear-powered rover Curiosity finds water-bearing minerals in rocks and other circumstantial clues that the Red Planet could have once supported life. But in terms of finding direct evidence of past or present Martians, the rover barely scratches the surface, says geochemist Jan Amend of the University of Southern California. Using Earth life as an example, some species of microbes live miles below the surface, without sunlight or oxygen, metabolizing chemicals that are the result of radioactive decay. Most intriguing of all is the microbe Desulforudis Audaxviator that dwells nearly two miles down, a life form that would feel right at home inside Mars' crust. 'This organism has had to figure out everything on its own,' says Amend, 'it splits water into hydrogen and oxygen for metabolism.' Amend hopes to drop probes deep underground in some of the world's most inhospitable locations over the next few years, creating a possible analog for future Mars subsurface studies."
Government

Is $100 Million Per Year Too Little For The Brain Map Initiative? 190

Posted by samzenpus from the bigger-allowance dept.
waderoush writes "At a time of sequesters and shrinking R&D spending, critics are attacking President Obama's proposed Brain Research Through Advancing Innovative Neurotechnologies (BRAIN) initiative, which would have a $100 million budget starting in 2014. But in fact, the project 'runs the risk of becoming a casualty of small-bore thinking in science business, and politics,' argues Xconomy national life sciences editor Luke Timmerman. The goal of the BRAIN initiative is to develop technologies for exploring the trillions of synapses between neurons in the human brain. If the $3 billion Human Genome Project and its even more productive sequel, the $300-million-per-year Advanced Sequencing Technologies program, are any guide, the initiative could lead to huge advances in our understanding of Alzheimer's disease, epilepsy, and consciousness itself. Only government can afford to think this big, argues Timmerman. 'Even though $100 million a year is small change by federal government standards,' Timmerman writes, 'it is enough to create a small market that gives for-profit companies assurance that if they build such tools, someone will buy them. We ought to be talking about how we can free up more money to achieve our neuroscience goals faster, rather than talking about whether we can afford this puny appropriation at all.'"
Medicine

Scientists Tout New Way To Debug Surgical Bots 68

Posted by samzenpus from the surgery-safety dept.
coondoggie writes "When it comes to having robotic surgeons slicing around inside your brain, heart or other important body organ, surgeons and patients need to know that a software or hardware glitch isn't going to ruin their day. That's why a new technique developed by researchers at Carnegie Mellon University and the Johns Hopkins University Applied Physics Laboratory that promises to reliably detect software bugs and verify the software safety of surgical robots could be a significant development."
Technology

Closing the Gap To Improve the Capacity of Existing Fiber Optic Networks 53

Posted by samzenpus from the building-it-better dept.
cylonlover writes "A team of researchers working through Australia's Centre for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS) has developed data encoding technology that increases the efficiency of existing fiber optic cable networks. The researchers claim their invention, which packs the data channels closer together, increases the data capacity of optical networks to the point that all of the world's internet traffic could be transmitted via a single fiber."
Education

Take a Sonic Tour of the Brain 16

Posted by timothy from the all-in-your-head dept.
Duncan J Murray writes "Currently exhibiting at The Barbican, London is an exhibit on Neuroscience, which includes this 20-minute auditory exhibit looking at (or should that be listening to) — sounds of neurons firing, simulations of cochlear implants, the mosquito frequency, neverending scales, phantom words and speech reconstructed from intracranial electrophysiological recording, as well as other auditory illusions. It is worth a listen."
Space

Beyond Kepler: Transiting Exoplanet Survey Satellite Set For 2017 Launch 43

Posted by timothy from the it-is-in-fact-made-of-starstuff dept.
astroengine writes "NASA has selected a $200 million mission to carry out a full-sky survey for exoplanets orbiting nearby stars. The space observatory, called the Transiting Exoplanet Survey Satellite, is scheduled for a 2017 launch. Like the currently operational Kepler Space Telescope, TESS will be in the lookout for exoplanets that orbit in front of their host stars, resulting in a slight dip in starlight. This dip is known as a "transit" and Kepler has revolutionized our understanding about planets orbiting other stars in our galaxy by applying this effective technique. As of January 2013, Kepler has spotted 2,740 exoplanetary candidates. "TESS will carry out the first space-borne all-sky transit survey, covering 400 times as much sky as any previous mission," said TESS lead scientist George Ricker, of the Massachusetts Institute of Technology Kavli Institute for Astrophysics and Space Research. "It will identify thousands of new planets in the solar neighborhood, with a special focus on planets comparable in size to the Earth.""
Software

Extended TeX: Past, Present, and Future 300

Posted by timothy from the 30-years-of-chugging-away dept.
First time accepted submitter Hamburg writes "Frank Mittelbach, member of the LaTeX Project and LaTeX3 developer, reviews significant issues of TeX raised already 20 years ago. Today he evaluates which issues are solved, and which still remain open and why. Examples of issues are managing consecutive hyphens, rivers of vertical spaces and identical words across lines, grid-based design, weighed hyphenation points, and overcoming the the mouth/stomach separation. Modern engines such as pdfTeX, XeTeX and LuaTeX are considered with regard to solutions of important problems in typesetting." Note: When TeX was first released, Jimmy Carter was president.
Space

NASA's Bolden: No American-Led Return To the Moon 'In My Lifetime' 233

Posted by timothy from the how's-the-heart? dept.
MarkWhittington writes "A clash over the future course of American space exploration flared up at a recent joint meeting of the Space Studies Board and the Aeronautics and Space Engineering Board. In one corner was Al Carnesale of UCLA, who headed the recent study issued by the National Research Council that found fault with the Obama administration's plan to send American astronauts to an asteroid. In the other corner was NASA Administrator Charles Bolden, who has been charged with carrying out the policy condemned by the NRC report."
Security

Why Do Pathogen Researchers Face Less Scrutiny Than Nuclear Scientists? 227

Posted by timothy from the time-travelers-totally-get-off-easy-too dept.
Lasrick writes "Derrin Culp of the National Center for Disease Preparedness explores the different levels of scrutiny that scientists in microbiology undergo, when compared to those who work in the nuclear weapons field. His complaint is that, even though America's most notorious biosecurity breach — the 2001 anthrax mailings — was the work of an insider, expert panels have concluded that there is no need for intrusive monitoring of microbiologists engaged in unclassified research."
Businesses

Ask Slashdot: Dealing With Unwanted But Official Security Probes? 238

Posted by timothy from the surely-you-have-nothing-to-hide dept.
An anonymous reader writes "I manage a few computers for an independent private medical practice connected to a hospital network. Recently I discovered repeated attempts to access these computers. After adjusting the firewall to drop connections from the attacking computers, I reported the presumed hacker IP to hospital IT. I was told that the activity was conducted by the hospital corporation for security purposes. The activity continues. It has included attempted fuzzing of a web server, buffer overrun attacks, attempts to access a protected database, attempts to get the password file, etc. The doctors want to maintain a relationship with the hospital and are worried that involving law enforcement would destroy the relationship. What would you advise the doctors to do next?"
Space

How Would an Astronaut Falling Into a Black Hole Die? 412

Posted by Soulskill from the probably-heart-attack dept.
ananyo writes "According to the accepted account, an astronaut falling into a black hole would be ripped apart, and his remnants crushed as they plunged into the black hole's infinitely dense core. Calculations by Joseph Polchinski, a string theorist at the Kavli Institute for Theoretical Physics in Santa Barbara, California, though, point to a different end: quantum effects turn the event horizon into a seething maelstrom of particles and anyone who fell in would hit a wall of fire and be burned to a crisp in an instant. There's one problem with the firewall theory. If Polchinski is right, then either general relativity or quantum mechanics is wrong and his work has triggered a mini-crisis in theoretical physics."
Space

Fusion Rocket Could Take Us To Mars 171

Posted by Soulskill from the should-suffice-until-zefram-cochrane-does-his-thing dept.
New submitter imikem writes "University of Washington researchers and scientists at a Redmond-based space-propulsion company are building components of a fusion-powered rocket aimed to clear many of the hurdles that block deep space travel, including long times in transit, exorbitant costs and health risks. 'Using existing rocket fuels, it's nearly impossible for humans to explore much beyond Earth,' said lead researcher John Slough, a UW research associate professor of aeronautics and astronautics. 'We are hoping to give us a much more powerful source of energy in space that could eventually lead to making interplanetary travel commonplace.' 'The research team has developed a type of plasma that is encased in its own magnetic field. Nuclear fusion occurs when this plasma is compressed to high pressure with a magnetic field. The team has successfully tested this technique in the lab. Only a small amount of fusion is needed to power a rocket – a small grain of sand of this material has the same energy content as 1 gallon of rocket fuel.'"
Software

Mobile App Screens Calls With Brain Waves 40

Posted by Soulskill from the because-moving-even-the-tiniest-muscle-is-undignified dept.
alphadogg writes "A mobile app under development can filter phone calls and reroute them directly to voicemail by reading brain waves, cutting the need for users to press buttons on the smartphone screen. The app, called Good Times, is the brainchild of Ruggero Scorcioni, CEO and founder of Brainyno, who presented the technology at the AT&T Innovation Showcase in New York, where some of the company's top research projects were highlighted. The app analyzes brainwaves as a phone call comes in, and depending on a person's mental state, reroutes a call. Information about brain waves is collected by a headset and sent to the smartphone via a Bluetooth connection, after which the app uses algorithms to analyze the status of a brain." Of course, the user has to be wearing a headset to detect the brainwaves. The software's creator hopes such detection can someday be integrated into devices like Google Glass.

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