Tuesday 31 January 2017

Tracing the cosmic web with star-forming galaxies in the distant universe

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A research group has revealed a picture of the increasing fraction of massive star-forming galaxies in the distant universe. Massive star-forming galaxies in the distant universe, about 5 billion years ago, trace large-scale structure in the universe. In the nearby universe, about 3 billion years ago, massive star-forming galaxies are not apparent. This change is consistent with the picture of galaxy evolution established by other independent studies.
via Science Daily
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Astronauts' brains change shape during spaceflight

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MRIs before and after space missions reveal that astronauts' brains compress and expand during spaceflight, according to a new study.
via Science Daily
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How stressful will a trip to Mars be on the human body?

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Preliminary research results for the NASA Twins Study debuted at NASA's Human Research Program's annual Investigators' Workshop in Galveston, Texas the week of Jan. 23. NASA astronaut Scott Kelly returned home last March after nearly one year in space living on the International Space Station. His identical twin brother, Mark, remained on Earth.
via Science Daily
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Ultrahigh sensitivity graphene infrared detectors for imaging and spectroscopy

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Researcher have developed a novel graphene-based infrared (IR) detector demonstrating record high sensitivity for thermal detection. Graphene's unique attributes pave the way for high-performance IR imaging and spectroscopy.
via Science Daily

NASA's fermi discovers the most extreme blazars yet

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NASA's Fermi Gamma-ray Space Telescope has identified the farthest gamma-ray blazars, a type of galaxy whose intense emissions are powered by supersized black holes. Light from the most distant object began its journey to us when the universe was 1.4 billion years old, or nearly 10 percent of its present age.
via Science Daily
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Where to See the American Eclipse

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Are you planning to see the American Eclipse on August 21? A few hours after sunrise, a rare total eclipse of the Sun will be visible along a narrow path across the USA. Those only near the path will see a partial eclipse. Although some Americans live right in path of totality, surely many more will be able to get there after a well-planned drive. One problem with eclipses, though, is that clouds sometimes get in the way. To increase your clear-viewing odds, you might consult the featured map and find a convenient destination with a historically low chance (more blue) of thick clouds overhead during totality. Given the large fraction of Americans carrying camera-equipped smartphones, this American Eclipse may turn out to be the most photographed event in the history of the world.

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First-ever GPS data release to boost space-weather science

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Today, more than 16 years of space-weather data is publicly available for the first time in history. The data comes from space-weather sensors.
via Science Daily
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