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Friday April 18th 2014

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Frozen in time: 3-million-year-old landscape still exists beneath the Greenland ice sheet

Some of the landscape underlying the massive Greenland ice sheet may have been undisturbed for almost 3 million years, ever since the island became completely ice-covered, according to researchers funded by the National Science Foundation.

Posted on 18 April 2014 | 4:00 am

Stanford researchers rethink ‘natural’ habitat for wildlife

Protecting wildlife while feeding a world population predicted to reach nine billion by 2050 will require a holistic approach to conservation that considers human-altered landscapes such as farmland, according to Stanford researchers.

Posted on 18 April 2014 | 4:00 am

New study suggests a better way to deal with bad memories

Researchers have determined a simple and effective emotion-regulation strategy that has neurologically and behaviorally been proven to lessen the emotional impact of personal negative memories.

Posted on 18 April 2014 | 4:00 am

MRI, on a molecular scale

A team of scientists, led by professor of physics and of applied physics Amir Yacoby, have developed a magnetic resonance imaging (MRI) system that can produce nano-scale images, and may one day allow researchers to peer into the atomic structure of individual molecules.

Posted on 18 April 2014 | 4:00 am

New research shows people are thinking about their health early in the week

A new study in the American Journal of Preventive Medicine analyzing weekly patterns in health-related Google searches reveals a recurring pattern that could be leveraged to improve public health strategies. Investigators analyzed ‘healthy’ Google searches originating in the US from 2005 to 2012 and found that on average, searches for health topics were 30 percent more frequent at the beginning of the week than on days later in the week.

Posted on 18 April 2014 | 4:00 am

Flipping the switch

Harvard researchers have succeeded in creating quantum switches that can be turned on and off using a single photon, an achievement that could pave the way for the creation of highly secure quantum networks.

Posted on 18 April 2014 | 4:00 am

Gecko-like adhesives now useful for real world surfaces

Crosby and polymer science researcher Dan King, with other UMass Amherst researchers including biology professor Duncan Irschick, report in the current issue of Advanced Materials how they have expanded their design theory to allow Geckskin to adhere powerfully to a wider variety of surfaces found in most homes such as drywall, and wood.

Posted on 18 April 2014 | 4:00 am

Religious music brings benefit to seniors’ mental health

A new article published online in The Gerontologist reports that among older Christians, listening to religious music is associated with a decrease in anxiety about death and increases in life satisfaction, self-esteem, and sense of control over their lives. In particular, listening to gospel music is associated with a decrease in anxiety about death and an increase in sense of control.

Posted on 18 April 2014 | 4:00 am

Innovative strategy to facilitate organ repair

A significant breakthrough could revolutionize surgical practice and regenerative medicine. A team led by Ludwik Leibler from the Laboratoire Matière Molle et Chimie (CNRS/ESPCI Paris Tech) and Didier Letourneur from the Laboratoire Recherche Vasculaire Translationnelle (INSERM/Universités Paris Diderot and Paris 13), has just demonstrated that the principle of adhesion by aqueous solutions of nanoparticles can be used in vivo to repair soft-tissue organs and tissues.

Posted on 18 April 2014 | 4:00 am

Researchers find 3-million-year-old landscape beneath Greenland ice sheet

Glaciers and ice sheets are commonly thought to work like a belt sander. As they move over the land they scrape off everything — vegetation, soil and even the top layer of bedrock. So a team of university scientists and a NASA colleague were greatly surprised to discover an ancient tundra landscape preserved under the Greenland ice sheet, below two miles of ice.

Posted on 18 April 2014 | 4:00 am

Science News Headlines – Yahoo News

Get the latest Science news headlines from Yahoo News. Find breaking Science news, including analysis and opinion on top Science stories.

SpaceX rocket lifts off for space station cargo run

By Irene Klotz CAPE CANAVERAL, Florida (Reuters) – An unmanned Falcon 9 rocket blasted off from Cape Canaveral Air Force Station in Florida on Friday to deliver a cargo capsule to the International Space Station for NASA. The 208-foot-tall (63-meter-tall) rocket, built and operated by privately owned Space Exploration Technologies, or SpaceX, bolted off its seaside launch pad at 3:25 p.m. EDT, darting through overcast skies as it headed toward orbit. The Dragon cargo ship, which is loaded with about 5,000 pounds (2,300 kg) of equipment, science experiments and supplies, is due to reach the station on Sunday. “The rocket flight was perfect as far as we could tell,” SpaceX chief executive and founder Elon Musk told reporters at a news conference after launch.

Posted on 18 April 2014 | 10:45 pm

SpaceX’s Dragon ‘Chases’ the Space Station: See It This Weekend

SpaceX's Dragon 'Chases' the Space Station: See It This WeekendSkywatchers across parts of the United States and southern Canada will get an opportunity to watch as the private spaceflight company SpaceX's Dragon capsule "chases" the International Space Station across the sky.  Both the unmanned Dragon spacecraft and the space station will be visible as separate entities, appearing as "stars" sailing across the evening’s twilight sky. Dragon is expected to arrive at the space station on Easter Sunday (April 20) at around 7:14 a.m. EDT (1114 GMT), meaning that by Sunday evening, both will appear as a singular bright moving "star." You can watch Dragon arrive at the station live on Space.com via NASA TV Sunday. Initially, SpaceX's Dragon will trail the orbiting outpost by about 25 minutes.

Posted on 18 April 2014 | 10:12 pm

SpaceX Launches Robotic Cargo Mission to Space Station

SpaceX Launches Robotic Cargo Mission to Space StationSpaceX launched a robotic capsule into orbit today (April 18), kicking off the company's third contracted cargo mission to the International Space Station for NASA, along with an ambitious rocket reusability test. SpaceX's unmanned Dragon spacecraft blasted off at 3:25 p.m. EDT (1925 GMT) today from Florida's Cape Canaveral Air Force Station, riding into space atop the company's Falcon 9 rocket. Dragon is scheduled to rendezvous with the orbiting lab on Sunday (April 20), when it will offload nearly 5,000 lbs. (2,268 kilograms) of food, scientific experiments and supplies. SpaceX also aimed to return the rocket's first stage softly to Earth, to help develop and demonstrate reusable-rocket technology, which company representatives say could dramatically reduce the cost of spaceflight in the future.

Posted on 18 April 2014 | 7:41 pm

Mt. Everest Avalanche: Is Climate Change to Blame?

Mt. Everest Avalanche: Is Climate Change to Blame?The icy slopes of Mount Everest have seen hundreds of deaths in the years since 1922, when seven people perished during the British Mount Everest Expedition. All of the deceased were guides from the ethnic Sherpa community, who were securing ropes for the start of the spring climbing season. And many Sherpas insist that Mount Everest and other mountains in the area have become more dangerous because of climate change. That, as a result, is causing more rock falls, which is a danger to the climbers," said Apa Sherpa, a Nepali climber, as quoted in Discovery News.

Posted on 18 April 2014 | 6:46 pm

Teen Driving: Loud Talking & Rowdiness Are Risky Distractions

Teen Driving: Loud Talking & Rowdiness Are Risky DistractionsAlthough texting and talking on the phone can be hazardous for young drivers, old-fashioned distractions such as loud conversations and rowdy passengers may be more likely to lead to car crashes and other dangerous driving situations, a new study suggests. Teen drivers in the study were six times more likely to have a serious driving incident — such as a collision, near collision, or loss of control — when there was a loud conversation in the car, compared to when there were no loud conversations. While use of electronic devices was a more common distraction, it was not linked with serious accidents, the study found.

Posted on 18 April 2014 | 6:27 pm

Frigid Winter? Blame 4,000 Years of Wild Jet Streams

Frigid Winter? Blame 4,000 Years of Wild Jet StreamsThe roaring jet stream, whose swooping winds drove frigid cold in the East and record warmth in the West this winter, first started twisting and turning about 4,000 years ago, according to a new analysis of ancient rainfall records from North America. The study shows the jet stream's plunging pattern is a long-standing natural phenomenon. "The pattern we've observed points to a strong potential for an increase in winter extremes in the future," said Gabe Bowen, a study co-author and paleoclimatologist at the University of Utah. Bowen and his co-authors examined the 8,000-year history of a weather pattern called the Pacific-North America Teleconnection.

Posted on 18 April 2014 | 5:42 pm

NASA robotic spacecraft ends mission with crash into the moon

By Irene Klotz CAPE CANAVERAL, Florida (Reuters) – A robotic U.S. spacecraft ended a pioneering mission to map dust and gases around the moon with a planned, kamikaze crash into the lunar surface early on Friday, NASA officials said. The Lunar Atmosphere and Dust Environment Explorer, or LADEE, had been flying at increasingly lower altitudes to study how dust is lifted off the lunar surface and what gases comprise the moon’s so-called exosphere – the region of space surrounding the airless moon. NASA officials had planned to crash the spacecraft into the moon, after it transmitted its final batch of data. Before hitting the lunar surface, LADEE was traveling at 3,600 mph, three times faster than a high-powered rifle bullet, so the spacecraft not only broke apart upon impact, but pieces of it likely vaporized.

Posted on 18 April 2014 | 5:02 pm

NASA Moon Probe Will Bite the Lunar Dust Soon: What It Taught Us

NASA Moon Probe Will Bite the Lunar Dust Soon: What It Taught UsA NASA probe orbiting the moon will literally bite the lunar dust within the next week or so when it crashes into the moon's far side. LDEX has churned out large amounts of data about the moon's dust exosphere, Kempf said, and deepened insight into the physics of the phenomenon.

Posted on 18 April 2014 | 10:12 am

In a cloning first, scientists create stem cells from adults

patient-specific stem cell linesBy Sharon Begley NEW YORK (Reuters) – Scientists have moved a step closer to the goal of creating stem cells perfectly matched to a patient's DNA in order to treat diseases, they announced on Thursday, creating patient-specific cell lines out of the skin cells of two adult men. The advance, described online in the journal Cell Stem Cell, is the first time researchers have achieved "therapeutic cloning" of adults. Technically called somatic-cell nuclear transfer, therapeutic cloning means producing embryonic cells genetically identical to a donor, usually for the purpose of using those cells to treat disease. But nuclear transfer is also the first step in reproductive cloning, or producing a genetic duplicate of someone – a technique that has sparked controversy since the 1997 announcement that it was used to create Dolly, the clone of a ewe.

Posted on 17 April 2014 | 10:36 pm

Scientists find Earth-sized world in orbit friendly to life

Kepler-186f planet seen in NASA artist's conceptThe discovery, announced on Thursday, is the closest scientists have come so far to finding a true Earth twin. The star’s outermost planet, designated Kepler-186f, receives about one-third the radiation from its parent star as Earth gets from the sun, meaning that high noon on this world would be roughly akin to Earth an hour before sunset, said astronomer Thomas Barclay, with NASA’s Ames Research Center in Moffett Field, California. “This planet is an Earth cousin, not an Earth twin,” said Barclay, who is among a team of scientists reporting on the discovery in the journal Science this week. NASA launched its Kepler space telescope in 2009 to search about 150,000 target stars for signs of any planets passing by, or transiting, relative to the telescope’s point of view.

Posted on 17 April 2014 | 7:49 pm