Wednesday, February 24, 2016

FeedaMail: Science News Headlines - Yahoo! News

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Satellite operator SES says interested in used SpaceX rocket

By Irene Klotz PORT CANAVERAL, Fla. (Reuters) - Satellite operator SES SA is interested in buying a used Falcon 9 rocket from Elon Musk's Space Exploration Technologies, or SpaceX, for a future launch, the chief technology officer for SES said on Tuesday. "SES would have no problem in flying a re-used (rocket's) first stage. If it's flight-worthy, we're happy," SES's Martin Halliwell told reporters at a pre-launch news conference.


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Sexual Spread of Zika May Be More Common than Thought, CDC Warns

Sexual transmission of the Zika virus from men to women may be a more common mode of the virus's spread than researchers previously thought, officials said today. Authorities at the Centers for Disease Control and Prevention (CDC) and several state public health departments are now investigating 14 new reports of possible sexual transmission of Zika virus. All of them involve men in the United States who had recently traveled to places where the virus is actively spreading, and their female sex partners who had not traveled, the CDC announced today (Feb. 23).


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Vaginal 'Seeding' Not Proven Safe, Experts Say

A growing number of pregnant women are asking doctors about a procedure that involves wiping down the skin of a newborn delivered by cesarean section with a gauze carrying their mothers' vaginal fluid, in an attempt to transfer helpful bacteria.

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Telescope used on Armstrong's moon landing finds new galaxies

By Pauline Askin SYDNEY (Reuters) - An Australian telescope used to broadcast live vision of man's first steps on the moon in 1969 has found hundreds of new galaxies hidden behind the Milky Way by using an innovative receiver that measures radio waves. Scientists at the Parkes telescope, 355 km (220 miles) west of Sydney, said they had detected 883 galaxies, a third of which had never been seen before. The findings were reported in the latest issue of Astronomical Journal under the title 'The Parkes HI Zone of Avoidance Survey'.


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Powerful Laser Could Blast Spacecraft to Mars in 3 Days (Video)

It sounds like science fiction, but it's eminently possible, researchers say: Robotic spacecraft could get to Mars after a journey of just three days. The key to making this happen is photon propulsion, which would use a powerful laser to accelerate spacecraft to relativistic speeds, said Philip Lubin, a physics professor at the University of California, Santa Barbara. "There are recent advances which take this from science fiction to science reality," Lubin said at the 2015 NASA Innovative Advanced Concepts (NIAC) fall symposium last October.


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'Warm Blob' Caused Wild Climate Swings During Last Ice Age

A "warm blob" of surface water played a role in Greenland's wild climate swings during the last ice age, a new study finds. Greenland's climate flipped quickly and brutally from cold to warm and back again 25 times between about 20,000 and 70,000 years ago, ice cores and ocean sediments show. The abrupt climate swings, called Dansgaard-Oeschger events, involved extreme changes in average temperature.


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SpaceX set to launch satellite, then try to land rocket on ocean platform

By Irene Klotz CAPE CANAVERAL, Fla. (Reuters) - A SpaceX Falcon 9 rocket was being readied for launch from Florida on Wednesday on a mission to thrust a European satellite toward orbit and then attempt a return touchdown on an ocean platform, company officials said. The 23-story-tall rocket, carrying a commercial communications satellite for Luxembourg-based SES SA, was scheduled to blast off from Cape Canaveral Air Force Station at 6:46 p.m. EST/2346 GMT. The flight would be the second of more than 12 planned this year by Space Exploration Technologies, the private rocket launch service owned and operated by high-tech entrepreneur Elon Musk.


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Dodo Birds Weren't 'Dodos' After All

Dodos weren't as dumb as their reputation suggests. New research finds that these extinct, flightless birds were likely as smart as modern pigeons, and had a better sense of smell. Dodos (Raphus cucullatus) had gone extinct by 1662, less than 100 years after their island home of Mauritius became a destination for Dutch explorers.


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Surprise! Sharks Have 'Social Lives'

While these apex predators were typically thought to lead mostly solitary lives, a new study finds that sand tiger sharks may be a lot more social than scientists had suspected. Sand tiger sharks (Carcharias taurus) go by a number of common names, including grey nurse shark, spotted ragged-tooth shark, slender-tooth shark and ground shark.


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Body Bioelectronics: 5 Technologies that Could Flex with You

As "smart" electronics get smaller and softer, scientists are developing new medical devices that could be applied to — or in some cases, implanted in — our bodies. We want to solve the mismatch between rigid wafer-based electronics and the soft, dynamic human body, said Nanshu Lu, an assistant professor of aerospace engineering and engineering mechanics at the University of Texas at Austin. Lu, who previously studied with John Rogers, a soft-materials and electronics expert at the University of Illinois Urbana-Champaign, focuses her research on stretchable bioelectronics.


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How Cuckoos Lay Deceptive Blue Eggs: It's in Their Genes

Now, scientists at the Norwegian University of Science and Technology (NTNU) have solved one piece of the egg puzzle: The gene that causes cuckoos to lay blue eggs is determined by the mother alone. "The enigma for scientists is the distinct colors and patterns of eggs mimicking different host species," said lead study author Frode Fossøy, a research scientist in the Department of Biology at NTNU. Male birds have ZZ and females have ZW, and so the gene for blue eggs could be carried on the Z chromosome, the researchers said.


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Kinky Spiders: Males Tie Up Partners During Sex

By restraining their partners, male spiders reduce their chances of falling victim to sexual cannibalism, a new study finds. Prior studies described the male spider's unusual mating behavior — wrapping silk around the female's legs before and during copulation — and the scientists wondered if longer legs would help males restrain their hungry mates, leaving the guys more likely to survive cannibalism sparked during the throes of passion. In some insect and spider species, sex can be a deadly roll of the dice for males, carrying the possibility that their female partners may suddenly identify them as a convenient postcoital snack.


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To Make a Moon Village, Think Beyond Science and Engineering (Op-Ed)

Tomoya Mori is a senior at Brown University pursuing interdisciplinary studies in space exploration, multimedia and education. "Been there, done that." President Barack Obama famously used that line to help shift the world's attention from the moon to Mars as a space destination in recent years, though the debate on where to go next continues. It goes beyond the realm of science and engineering, the two fields often considered the core of space exploration, and include politics, law, architecture, business and design.


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13 Dead Bald Eagles Prompt Investigation, $10,000 Reward

Thirteen bald eagles were found dead recently in Maryland, prompting officials to offer a reward of up to $10,000 for information about what happened to the federally protected birds of prey. Bald eagles were listed as an endangered species in the lower 48 states after the birds nearly went extinct in the 1960s.

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Tuesday, February 23, 2016

FeedaMail: Science News Headlines - Yahoo! News

feedamail.com Science News Headlines - Yahoo! News

Will the World's Largest Supercollider Spawn a Black Hole? (Op-Ed)

Don Lincoln is a senior scientist at the U.S. Department of Energy's Fermilab, the United States' biggest Large Hadron Collider research institution. The most commonly mentioned is the idea that the LHC can make a black hole.


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To Prevent Another Dust Bowl, the US Must Sow the Right Seeds

Diane Banegas currently works in the area of science delivery for the research arm of the U.S. Forest Service. This is especially true if the land is in an arid region with less than 11 inches (28 centimeters) of annual precipitation.


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Ancient armored mammal from Argentina was a huge armadillo

By Will Dunham WASHINGTON (Reuters) - DNA coaxed out of a 12,000-year-old fossil from Argentina is providing unique insight into one of the strangest Ice Age giants: a tank-like mammal the size of a small car with a bulbous bony shell and a spiky, club-shaped tail. Scientists said on Monday their genetic research confirmed that the creature, named Doedicurus, was part of an extinct lineage of gigantic armadillos. Doedicurus was a plant-eater that weighed about a ton and roamed the pampas and savannas of South America, vanishing about 10,000 years ago along with many other large Ice Age animals.


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Thought-controlled prosthetic limbs possibly within reach, scientists say

By Jarni Blakkarly SYDNEY (Reuters) - Thought-controlled prosthetic limbs, wheelchairs and computers may be available within a decade, say Australian scientists who are planning to conduct human trials next year on a high-tech implant that can pick up and transmit signals from the brain.    Animals have already been tested with the device, called a stentrode, which is the size of a matchstick and planted inside a blood vessel near the brain. "The big breakthrough is that we now have a minimally invasive brain-computer interface device which is potentially practical for long-term use," said Terry O'Brien, head of medicine at the Department of Medicine and Neurology at the University of Melbourne. The current method for accessing brain signals requires complex open-brain surgery and becomes less effective over several months, which means it is rarely applied, he said.


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Thought-controlled prosthetic limbs possibly within reach, scientists say

By Jarni Blakkarly SYDNEY (Reuters) - Thought-controlled prosthetic limbs, wheelchairs and computers may be available within a decade, say Australian scientists who are planning to conduct human trials next year on a high-tech implant that can pick up and transmit signals from the brain.    Animals have already been tested with the device, called a stentrode, which is the size of a matchstick and planted inside a blood vessel near the brain. "The big breakthrough is that we now have a minimally invasive brain-computer interface device which is potentially practical for long-term use," said Terry O'Brien, head of medicine at the Department of Medicine and Neurology at the University of Melbourne. The current method for accessing brain signals requires complex open-brain surgery and becomes less effective over several months, which means it is rarely applied, he said.


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Volkswagen-Size Armored Mammal Is Armadillo Ancestor

A new genetic analysis of the glyptodont, an ancient armored creature the size of a Volkswagen Beetle, reveals that it's closely related to the modern-day armadillo. "The data sheds light on the familial relations of an enigmatic creature that has fascinated many but was always shrouded in mystery," study researcher Hendrik Poinar, an evolutionary geneticist and physical anthropologist, said in a statement. Now, a genetic analysis shows that the glyptodont is nestled deeply within the armadillo family and should be treated like a close relative, the researchers said.


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Gorilla born by rare caesarean section delivery at British zoo

A baby gorilla has been delivered by a rare caesarean section at a British zoo in an operation performed by a hospital gynaecologist, the zoo said on Tuesday. Professor David Cahill, a gynaecologist at a nearby hospital who has delivered hundreds of babies by caesarean but never a gorilla, was drafted in to perform the operation, one of just a handful ever carried out worldwide. "I have since been back to visit Kera and the baby gorilla, it was wonderful to see them both doing so well." The baby girl gorilla weighed just over a kilogram (2 lbs 10oz) at birth 11 days ago.


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Homesteading in Space: White House Science Office Seeks Sci-Fi Inspiration

Roughly 70 space scientists, engineers, entrepreneurs, along with storytellers, artists, directors, and producers met to show their interest in science fiction and space exploration with a view toward future "homesteading" in space. Other co-sponsors were the National Academy of Sciences, Science & Entertainment Exchange, and the Museum of Science Fiction.


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'Space Archaeologists' Show Spike in Looting at Egypt's Ancient Sites

As economic and political instability rocked Egypt, looters increasingly plundered the country's archaeological sites, leaving holes across the nation's ancient landscapes. That's the trend reported today in the journal Antiquity by archaeologists who used satellite images to monitor sites in Egypt from 2002 to 2013. For the last several years, "space archaeologist" Sarah Parcak, an associate professor of anthropology at the University of Alabama at Birmingham, has pored over satellite images to discover lost pyramids, tombs and cities buried in Egypt.


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Dreamlike Seahorse Picture Snags Top Prize

Lopresti's striking photo of a spiny seahorse in waters near Trieste, Italy, rose above submissions from entrants in 54 countries in the the annual Underwater Photographer of the Year (UPY) contest. The image, titled "Gold," also claimed first place in the contest's macro photography category. Motion blur in the waves conveys the undulation of moving water, while the sharply focused and brilliantly yellow seahorse's head and body emerge from the deep blue sea surrounding it.


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Scientists Find 8 New Species of Spider with Whiplike Legs

A pair of elongated, whiplike legs that are actually sophisticated environment sensors distinguish an unusual arachnid known as the whip spider, also called the tailless whip scorpion. Scientists recently described eight new species of this long-legged spider that are native to Brazil, nearly doubling the number of known species in the genus Charinus. Thanks to the new species discoveries, Brazil now boasts the greatest diversity of whip spiders in the world.


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Scientists Isolate Antibodies That Fight Ebola

An Ebola survivor's blood and a new technique for isolating immune cells may have opened up new ways to combat the deadly virus.


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Come on, Already! Impatience Linked to Chromosome Length

Impatient people may be more likely to have shorter telomeres, parts of human chromosomes that that tend to get shorter as people age, according to a new study.

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Small Weight Loss Leads to Big Health Gains

Losing just 5 percent of your body weight can have significant positive effects on your health, a new small study finds.

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Young Adults Ignore Stroke Symptoms That Could Save Their Lives (Op-Ed)

Dr. David Liebeskind is director of outpatient stroke and neurovascular programs and director of the Neurovascular Imaging Research Core at Ronald Reagan UCLA Medical Center. He contributed this article to Live Science's  Expert Voices: Op-Ed & Insights


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10 Reasons California Is 'Greener' than New York (Op-Ed)

@deaton_jeremy. Deaton contributed this article, a response to " 10 Reasons NY is 'Greener' than CaliforniaExpert Voices: Op-Ed & Insights.


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10 Reasons New York Is 'Greener' Than California (Op-Ed)

10 Reasons California Is 'Greener' Than New YorkExpert Voices: Op-Ed & Insights.


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Are Genetic Weapons the Best Tools to Fight Zika Virus? (Op-Ed)

Expert Voices: Op-Ed & Insights.

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