Earth
Mars-like ice rediscovered in Hawaii volcano, but might not last
Ice was mysteriously found below the crater of Hawaii鈥檚 Mauna Kea 50 years ago, but was soon forgotten. Alice Klein joins a search for clues to ice on Mars
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Space
Our home spiral arm in the Milky Way is less wimpy than thought
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Space
Plumes spotted on Europa raise hopes that we can taste its ocean
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Space
World’s largest telescope array takes its deepest view yet
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Space
New NASA budget could put asteroid-grabbing mission in jeopardy
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Space
鈥楢lien megastructure鈥� star may be explained by interstellar junk
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Space
Rosetta set for a grand finale by diving into cometary cave
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Space
Blue Origin unveils big new rocket that will put humans in orbit
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Space
CSI Eta Carinae: Clouds suggest odd star’s history of violence
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Life
Stars burning strangely make life in the multiverse more likely
Supporters of the multiverse often cite a specific reaction in stars that seems tuned for life, making our universe improbable 鈥� but now there鈥檚 a new idea
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Life
Mysterious signal unlikely to be aliens after SETI draws a blank
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Life
Mysterious SETI signal sends alien-hunting telescopes scrambling
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Life
Proxima b鈥檚 star could be blasting away the planet鈥檚 atmosphere
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Humans
Tale of world of supersmart spiders takes Clarke SF award
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