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Nitrogen may be a sign of habitability

We might commonly think of Earth as having an oxygen-dominated atmosphere, but in reality the molecule makes up only a fifth of our air. Most of what surrounds us is nitrogen, at 78 percent. Astrobiologists are beginning ...

dateJan 13, 2016 in Astronomy
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How long is a day on Mars?

Mars represents something of a conundrum for scientists. In many respects, it is significantly different from Earth. It's cold, it's dry, there is little atmosphere or precipitation to speak of, and nothing grows there. ...

dateDec 15, 2015 in Space Exploration
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NASA vs. cigarettes—a numbers game

People often criticize the amount of money spent on space exploration. Sometimes it's well-meaning friends and family who say that that money is wasted, and would be better spent on solving problems here on Earth. In fact, ...

dateNov 17, 2015 in Space Exploration
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The "omics" of space travel

The human body is incredibly complex. Every part of us—from our bones to our blood cells—is subject to a host of chemical reactions and molecular interactions that, without our conscious effort, keep us alive.

dateNov 16, 2015 in Space Exploration
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CubeSats in deep space

(Phys.org)—Tiny spacecraft have their ambitions of space exploration too. The small-sized satellites called CubeSats, made of box-shaped four-inch units, are successfully operating in the low Earth orbit, conducting a variety ...

dateNov 03, 2015 in Space Exploration report
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