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Showing posts from January 13, 2017

Astronauts begin spacewalk to upgrade station power system

By Irene Klotz CAPE CANAVERAL, Fla. (Reuters) - Two astronauts floated outside the International Space Station on Friday for a 6-1/2-hour spacewalk to replace aging batteries for the laboratory's solar power system, an upgrade needed to keep the outpost running into the next decade, NASA said. U.S. astronaut Shane Kimbrough left the station’s airlock at about 6:30 a.m. EST (1130 GMT) to begin his second spacewalk this month. The men are continuing work started during a spacewalk earlier this month to hook up an array of 428-pound (194 kg) lithium-ion battery packs, which are about the size of a small refrigerator, to the station's solar power system.


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Baby Farms of the Future? Docs Warn of Ethical Issues from New Tech

In the not-too-distant future, scientists may be able to create human sperm and egg cells in a lab dish. In a new paper, researchers at Harvard and Brown universities discuss the theoretical implications of creating sperm and egg cells in a lab dish, referred to as "in vitro gametogenesis," or IVG. IVG is not yet possible in humans — just from a scientific standpoint, many technical barriers remain before human gametes could be made from other human cells, the authors said.


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Stem Cells Could Restore Vision After Eye Disease

Researchers used stem cells to grow new retina tissue in a lab, and then transplanted that tissue into mice that had end-stage retinal degeneration. More than 40 percent of the mice gained the ability to see light as the result of the procedure, the researchers said. "We were at first very excited to see that the transplants do robustly respond to light," Dr. Michiko Mandai, the first author of the paper and a deputy project leader at the RIKEN Center for Developmental Biology in Japan, told Live Science.


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How Brain Cells Can Predict Your Age

As we get older, our brain cells show changes, and now a new study finds that certain changes happen so reliably that by themselves they can reveal a person's age. In the study, researchers analyzed brain tissue samples from 480 people who died between the ages 16 and 106. They found that, with age, certain types of brain cells called glial cells showed a shift in their gene expression patterns in certain regions of the brain.


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Alien Glow? Brilliant Light Pillars Appear Over Canada

Despite appearances, aliens have not descended upon a snowy scape in Ontario, Canada. Rather, an Earthly phenomenon is the cause of a ring of brilliant shafts of pastel-colored lights, captured in the wee hours of the morning by Timmy Joe Elzinga using his smartphone camera. It was 1:30 a.m. local time in northern Ontario on Jan. 6 when Elzinga spotted the phenomenon.


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Green Glow from Ancient Galaxies Surprises Scientists

The galaxies are greener on the other side of the universe, it seems: A new analysis reveals that some of the most distant galaxies ever observed are radiating green light, a finding that could deeply affect developing models of those early galaxies. Researchers have seen this same kind of green light coming from a few galaxies in the nearby universe, but, according to Malkin, the "shocking" part of the new analysis is in the number of galaxies involved: The green light that researchers observed in the new study appears to be coming from most or all of the galaxies that formed in the first 1 billion or 2 billion years of the universe.


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BRIEF-Uni-Bio Science Group Ltd says Tong Kit Shing has ceased to be executive director, chairman

Jan 13 (Reuters) - Uni-Bio Science Group Ltd * Tong Kit Shing has retired and ceased to be an executivedirector, chairman of board * Kingsley Leung has been appointed as chairman of board * Chen Dawei has been appointed as an executive director,vice-chairman of boardSource text for Eikon: Further company coverage:

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