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  • Finding Life In Space By Looking For Extraterrestrial Pollution

    coondoggie writes: If what we know as advanced life exists anywhere other than Earth, then perhaps they are dirtying their atmosphere as much as we are. We could use such pollution components to perhaps more easily spot such planets. That's the basis of new research published this week by researchers at the Harvard-Smithsonian Center for Astrophysics. They say that if we could spot the fingerprints of certain pollutants under ideal conditions (PDF), it would offer a new approach in the search for extraterrestrial intelligence."

    44 comments | 2 hours ago

  • Oso Disaster Had Its Roots In Earlier Landslides

    vinces99 writes: The disastrous March 22 landslide that killed 43 people in the rural Washington state community of Oso involved the "remobilization" of a 2006 landslide on the same hillside, a new federally sponsored geological study concludes. The research indicates the landslide, the deadliest in U.S. history, happened in two major stages. The first stage remobilized the 2006 slide, including part of an adjacent forested slope from an ancient slide, and was made up largely or entirely of deposits from previous landslides. The first stage ultimately moved more than six-tenths of a mile across the north fork of the Stillaguamish River and caused nearly all the destruction in the Steelhead Haven neighborhood. The second stage started several minutes later and consisted of ancient landslide and glacial deposits. That material moved into the space vacated by the first stage and moved rapidly until it reached the trailing edge of the first stage, the study found. "Perhaps the most striking finding is that, while the Oso landslide was a rare geologic occurrence, it was not extraordinary," said Joseph Wartman, a University of Washington associate professor of civil and environmental engineering and a team leader for the study.

    55 comments | yesterday

  • UEA Research Shows Oceans Vital For Possibility of Alien Life

    An anonymous reader writes New research at the University of East Anglia finds that oceans are vital in the search for alien life. So far, computer simulations of habitable climates on other planets have focused on their atmospheres. But oceans play an equally vital role in moderating climates on planets and bringing stability to the climate, according to the study. From the press release: "The research team from UEA's schools of Mathematics and Environmental Sciences created a computer simulated pattern of ocean circulation on a hypothetical ocean-covered Earth-like planet. They looked at how different planetary rotation rates would impact heat transport with the presence of oceans taken into account. Prof David Stevens from UEA's school of Mathematics said: 'The number of planets being discovered outside our solar system is rapidly increasing. This research will help answer whether or not these planets could sustain alien life. We know that many planets are completely uninhabitable because they are either too close or too far from their sun. A planet's habitable zone is based on its distance from the sun and temperatures at which it is possible for the planet to have liquid water. But until now, most habitability models have neglected the impact of oceans on climate.'"

    91 comments | 2 days ago

  • Snowden Seeks To Develop Anti-Surveillance Technologies

    An anonymous reader writes Speaking via a Google Hangout at the Hackers on Planet Earth Conference, Edward Snowden says he plans to work on technology to preserve personal data privacy and called on programmers and the tech industry to join his efforts. "You in this room, right now have both the means and the capability to improve the future by encoding our rights into programs and protocols by which we rely every day," he said. "That is what a lot of my future work is going to be involved in."

    129 comments | 2 days ago

  • A Look At NASA's Orion Project

    An anonymous reader writes "People in north Iowa got a first-hand look at NASA's Orion Project. Contractors with NASA were in Forest City to talk about the new project and show off a model of the new spaceship. NASA has big plans to send humans to an asteroid by 2025. The mission, however, will not be possible without several important components that include yet-to-be-developed technologies, as well as the Space Launch System (SLS) and the Orion spacecraft to fly astronauts beyond low-Earth orbit. In fact, Orion's first flight test later this year will provide NASA with vital data that will be used to design future missions."

    108 comments | 3 days ago

  • White House Approves Sonic Cannons For Atlantic Energy Exploration

    An anonymous reader writes: The White House on Friday gave final approval to allow the use of sonic cannons in finding energy deposits underneath the ocean floor on the U.S. Atlantic seaboard. The Bureau of Ocean Energy Management says that finding energy resources off the Atlantic seaboard "could generate thousands of jobs, but has also acknowledged that the process will harm sea creatures." Sonic cannons "fire sound waves 100 times louder than a jet engine." Mammals such as whales and dolphins that communicate through sound will most likely be affected, but scientists aren't sure to what extent. They also aren't sure how the cannons will affect fish and other sea creatures or how any physiological effects on them may impact the fishing industries of the U.S. and the other countries who rely on seafood that migrate into and out of the Atlantic Ocean.

    271 comments | 3 days ago

  • Australia Repeals Carbon Tax

    schwit1 notes that the Australian government has repealed a controversial carbon tax. After almost a decade of heated political debate, Australia has become the world's first developed nation to repeal carbon laws that put a price on greenhouse gas emissions. In a vote that could highlight the difficulty in implementing additional measures to reduce carbon emissions ahead of global climate talks next year in Paris, Australia's Senate on Wednesday voted 39-32 to repeal a politically divisive carbon emissions price that contributed to the fall from power of three Australian leaders since it was first suggested in 2007.

    288 comments | 5 days ago

  • New Map Fingers Future Hot Spots For U.S. Earthquakes

    sciencehabit writes Earthquake risk assessments can seem pretty abstract at first glance, with their "percent probabilities" and "peak ground accelerations." But the U.S. Geological Survey's (USGS's) national hazard maps, updated periodically, pack a powerful punch: Insurance companies and city planners rely heavily on the maps, which influence billions of dollars in construction every year. Today, USGS scientists released the most recent earthquake hazard assessments for the country. Although the picture hasn't changed much on a national scale since the last report in 2008, the devil is in the details, the report's authors say—and some areas in the country are now considered to be at higher risk for powerful quakes than once thought.

    49 comments | about a week ago

  • NIF Compresses Diamonds With 50 Million Atmospheres of Pressure

    sciencehabit (1205606) writes The world's largest laser [the National Ignition Facility], a machine that appeared as the warp core in 'Star Trek into Darkness', has attained a powerful result: It's squeezed diamond, the least compressible substance known, 50 million times harder than Earth's atmosphere presses down on us. ... As the researchers report online today in Nature, the x-ray assault nearly quadrupled the diamond's density. "That's a record," Smith [one of the researchers] says. "No one's compressed diamond to that extent before." The blast pulverized the diamond into dust, but before the mineral's destruction the scientists successfully measured its density ... For a billionth of a second, the diamond, which is normally 3.25 times denser than water, became ... 12.03 times denser than water. ... Scientists have speculated that diamond worlds may exist elsewhere. If a solar system arises with more carbon than oxygen, then carbon should soak up the oxygen by forming carbon monoxide, leaving excess carbon to create carbon planets—which, under pressure, become diamond worlds. Thus, Smith says, the new experiment will probe the nature of such planets. They are performing similar experiments with iron in an attempt to understand the properties of super-Earth cores.

    81 comments | about a week ago

  • Fossils of Cambrian Predator Preserved With Brain Impressions

    An anonymous reader writes "Researchers on Wednesday described fossilized remains unearthed in China showing in fine detail the brain structures of a bizarre group of sea creatures that were the top predators more than half a billion years ago. The 520-million-year-old creature, one of the first predators of its day, sported compound eyes, body armor and two spiky claws for grabbing prey. "The animals of the Cambrian are noted for being a collection of oddballs that are sometimes difficult to match up with anything currently living on Earth. But even among these oddities, Anomalocarids stand out (as their name implies). The creatures propelled themselves with a series of oar-like paddles arranged on their flanks, spotted prey with enormous compound eyes, and shoveled them into a disk-like mouth with large arms that resided at the very front of their bodies—although some of them ended up as filter feeders."

    45 comments | about a week ago

  • Giant Crater Appears In Northern Siberia

    New submitter DavidMZ writes: The Siberian Times reports on a large crater of unknown origin that has appeared in the Yamal Peninsula in northern Siberia. The Russian government has dispatched a group of scientists to investigate the 80-meter-wide crater. Anna Kurchatova from Siberia's Sub-Arctic Scientific Research Center believes the crater was a result of an explosion when a mixture of water, salt, and natural gas exploded underground. The Yamai Peninsula is known to hold Russia's biggest natural gas reserve."

    122 comments | about a week ago

  • The Last Three Months Were the Hottest Quarter On Record

    New submitter NatasRevol (731260) writes The last three months were collectively the warmest ever experienced since record-keeping began in the late 1800s. From the article: "Taken as a whole, the just-finished three-month period was about 0.68 degrees Celsius (1.22 degrees Fahrenheit) above the 20th-century average. That may not sound like much, but the added warmth has been enough to provide a nudge to a litany of weather and climate events worldwide. Arctic sea ice is trending near record lows for this time of year, abnormally warm ocean water helped spawn the earliest hurricane ever recorded to make landfall in North Carolina, and a rash of heat waves have plagued cities from India to California to the Middle East." Also, it puts to bed the supposed 'fact' that there's been a pause in temperature increase the last 17 years. Raw data shows it's still increasing. bizwriter also wrote in with some climate related news: A new report from libertarian think tank Heartland Institute claims that new government data debunks the concept of global climate change. However, an examination of the full data and some critical consideration shows that the organization, whether unintentionally or deliberately, has inaccurately characterized and misrepresented the information and what it shows. The Heartland Institute skews the data by taking two points and ignoring all of the data in between, kind of like grabbing two zero points from sin(x) and claiming you're looking at a steady state function.

    552 comments | about a week ago

  • People Who Claim To Worry About Climate Change Don't Cut Energy Use

    schwit1 (797399) writes with news that a UK study has found that folks concerned about climate change don't do much to conserve power at home. From the article: Those who say they are concerned about the prospect of climate change consume more energy than those who say it is "too far into the future to worry about," the study commissioned by the Department for Energy and climate change found. That is in part due to age, as people over 65 are more frugal with electricity but much less concerned about global warming. However, even when pensioners are discounted, there is only a "weak trend" to show that people who profess to care about climate change do much to cut their energy use. The findings were based on the Household Electricity Survey, which closely monitored the electricity use and views of 250 families over a year. The report (PDF), by experts from Loughborough University and Cambridge Architectural Research, was commissioned and published by DECC. High power use doesn't have to be dirty: Replace coal, methane, and petroleum with nuclear, wind, solar, etc.

    708 comments | about a week ago

  • Walter Munk's Astonishing Wave-Tracking Experiment

    An anonymous reader writes in with a look at a scientist's interesting wave-tracking experiment and the incredible journeys that waves make. His name is Walter Munk, now in his 90s and a professor emeritus at the Scripps Institution of Oceanography in La Jolla, California. About 60 years ago, he was anchored off Guadalupe Island, on Mexico's west coast, watching swells come in, and using an equation that he and others had devised to plot a wave's trajectory backward in time, he plotted the probable origins of those swells. But the answer he got was so startling, so over-the-top improbable, that he thought, "No, there must be something wrong." His equations said that the swells hitting beaches In Mexico began some 9,000 miles away — somewhere in the southern reaches of the Indian Ocean, near Antarctica. "Could it be?" he wrote in an autobiographical sketch. Could a storm half way across the world produce a patch of moving water that traveled from near the South Pole, up past Australia, then past New Zealand, then across the vast expanse of the Pacific, arriving still intact – at a beach off Mexico? He decided to find out for himself. That is why, in 1957, Walter Munk designed a global, real life, wave-watching experiment.

    55 comments | about two weeks ago

  • Arecibo Radio Telescope Confirms Extra-galactic Fast Radio Pulses

    schwit1 writes: "The Arecibo radio telescope has confirmed the existence of fast radio pulses. "Fast radio bursts (FRBs) are bright flashes of radio waves that last only a few thousandths of a second. Scientists using the Parkes Observatory in Australia recorded such events for the first time, but the lack of any similar findings by other facilities led to speculation that the Australian instrument might have been picking up signals originating from sources on or near Earth. The discovery at Arecibo is the first detection of a fast radio burst using an instrument other than the Parkes radio telescope. The position of the radio burst is in the direction of the constellation Auriga in the Northern sky.

    "Our result is important because it eliminates any doubt that these radio bursts are truly of cosmic origin," continues Victoria Kaspi, an astrophysics professor at McGill University in Montreal and Principal Investigator for the pulsar-survey project that detected this fast radio burst. "The radio waves show every sign of having come from far outside our galaxy – a really exciting prospect." Exactly what may be causing such radio bursts represents a major new enigma for astrophysicists. Possibilities include a range of exotic astrophysical objects, such as evaporating black holes, mergers of neutron stars, or flares from magnetars — a type of neutron star with extremely powerful magnetic fields." Be warned: All of the above theories could also be wrong. These fast radio flashes could just as easily turn out to be something entirely unpredicted.

    95 comments | about two weeks ago

  • Insurance Claims Reveal Hidden Electronic Damage From Geomagnetic Storms

    KentuckyFC writes: On 13 March 1989, a powerful geomagnetic storm severely disrupted the Hydro-Québec high-voltage grid triggering numerous circuit breakers and blacking out much of eastern Canada and the northeastern U.S. Since then, Earth has been hit by numerous solar maelstroms without such large-scale disruption. But the smaller-scale effect of these storms on low voltage transmissions lines, and the equipment connected to them, has been unknown. Until now. Researchers from the Lockheed Martin Solar and Astrophysics Laboratory have analyzed insurance claims for damage to industrial electrical equipment between 2000 and 2010 and found a clear correlation with geomagnetic activity. They say that the number of claims increases by up to 20 per cent on the days of highest geomagnetic activity. On this basis, they calculate that the economic impact of geomagnetic damage must amount to several billion dollars per year. That raises the question of the impact these storms have on household electronic equipment, such as computers, smartphones and tablets, and whether domestic insurance claims might throw some light on the issue.

    78 comments | about two weeks ago

  • Asteroid Mining Bill Introduced In Congress To Protect Private Property Rights

    MarkWhittington writes: "Rep. Bill Posey (R-FL) announced on Thursday that he was introducing a bill along with Rep, Derek Kilmer (D-WA) called the American Space Technology for Exploring Resource Opportunities in Deep Space (ASTEROIDS) Act of 2014 (PDF). The act is designed to protect the private property rights for entities mining asteroids and to otherwise encourage asteroid mining. The bill is in apparent reaction to efforts by companies like Planetary Resources and Deep Space Industries to locate and mine Earth approaching asteroids for their resources.

    The crucial part of the short piece of legislation states that the resources mined from an asteroid would be the property of the entity undertaking the operation. This language gets around the provision of the Outer Space Treaty that says states are forbidden to establish national sovereignty over celestial bodies, which would be a prerequisite to the United States allowing a private entity to own an asteroid. It rather grants mineral rights to the asteroid, something the treaty does not mention. There is no enforcement mechanism in the event of a dispute with another country, however."

    181 comments | about two weeks ago

  • Study: Why the Moon's Far Side Looks So Different

    StartsWithABang writes 55 years ago, the Soviet probe Luna 3 imaged the side of the Moon that faces away from us for the first time. Surprisingly, there were only two very small maria (dark regions) and large amounts of mountainous terrain, in stark contrast to the side that faces us. This remained a mystery for a very long time, even after we developed the giant impact hypothesis to explain the origin of the Moon. But a new study finally appears to solve the mystery, crediting the heat generated on the near side from a hot, young Earth with creating the differences between the two hemispheres.

    79 comments | about two weeks ago

  • Climate Change Skeptic Group Must Pay Damages To UVA, Michael Mann

    ideonexus (1257332) writes In January of 2014, the American Traditions Institute (ATI) sought climate scientist Micheal Mann's emails from his time at the University of Virginia, a request that was denied in the courts. Now the Virginia Supreme Court has upheld a lower court ruling that ATI must pay damages for filing a frivolous lawsuit. Thus ends "Climategate." Hopefully.

    497 comments | about two weeks ago

  • Buzz Aldrin Pressures Obama For New Space Exploration Initiative

    MarkWhittington writes: While he has initiated the social media campaign, #Apollo45, to commemorate the 45th anniversary of the first moon landing, Apollo 11 astronaut Buzz Aldrin is also using the occasion to campaign for an expansion of American space exploration. According to a Tuesday story in the Washington Post, Aldrin has expressed the wish that President Obama make some sort of announcement along those lines this July 20. The idea has a certain aspect of deja vu. Aldrin believes that the American civil space program is adrift and that some new space exploration, he prefers to Mars, would be just the thing to set it back on course. There is only one problem, however. President Obama has already made the big space exploration announcement. Aldrin knows this because he was there. President Obama flew to the Kennedy Space Center on April 15, 2010, with Aldrin accompanying as a photo op prop, and made the announcement that America would no longer be headed back to the moon, as was the plan under his predecessor George W. Bush. Instead American astronauts would visit an Earth approaching asteroid and then, decades hence, would land on Mars.

    78 comments | about two weeks ago

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