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The universe's water is billions of years older than scientists thought — and may be nearly as old as the Big Bang itself
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Saucer-like 'Winnebago' space capsule lands in Australia — marking 1st for commercial space industry
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Space photo of the week: James Webb telescope shocks scientists with image of ancient galaxy roaring back to life
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'Strange' star pulses detected in search for extraterrestrial intelligence
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Astronomers spy puzzlingly 'perfect' cosmic orb with unknown size and location
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'White streak' appears over US as China dumps experimental fuel in space
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Never-before-seen 'extreme' microbes surrounded NASA robot before it was sent to Mars 18 years ago, new study reveals
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Venus may be geologically 'alive' after all, NASA reveals
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Unknown strain of bacteria found on China's Tiangong Space Station
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How many satellites orbit Earth?
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Astronomers spy puzzlingly 'perfect' cosmic orb with unknown size and location
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Venus may be geologically 'alive' after all, NASA reveals
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China is sharing priceless moon samples with international partners, but NASA can't be a part of it
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May's best stargazing week is about to begin. Here's what to see.
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Space photo of the week: Cotton candy clouds shine in one of Hubble's most beautiful images ever
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Our moon may have once been as hellish as Jupiter's super volcanic moon Io
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When is the next full moon?
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Eerie NASA image shows eclipsed sun with an extra moon overhead. Yes — it's real.
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The US isn't prepared for a big solar storm, exercise finds
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'Strange' star pulses detected in search for extraterrestrial intelligence
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Did the James Webb telescope really discover aliens? The truth about K2-18b.
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Dyson spheres could really exist — but there's a catch
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Intelligent aliens would need a power supply to jump-start their civilization — would they require fossil fuels?
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QuizExtraterrestrials quiz: Are you an alien expert, or has your brain been abducted?
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If life can exist in your stomach, it can exist on Mars. Here's what it might look like.
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'Perhaps it's only a matter of time': Intelligent life may be much more likely than first thought, new model suggests
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The existence of intelligent aliens is 'highly likely' — and they could await in our own galaxy
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Did people report seeing UFOs before the 20th century?
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'White streak' appears over US as China dumps experimental fuel in space
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Never-before-seen 'extreme' microbes surrounded NASA robot before it was sent to Mars 18 years ago, new study reveals
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Unknown strain of bacteria found on China's Tiangong Space Station
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How many satellites orbit Earth?
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Doomed Soviet spacecraft Kosmos 482 could hit Earth tonight. Here's when.
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Soviet spacecraft Kosmos 482 crashes back to Earth, disappearing into Indian Ocean after 53 years in orbit
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Giant NASA science balloon completes trip around the world in 16 days
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Where will doomed Soviet spacecraft Kosmos 482 hit Earth? (Map)
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Doomed Soviet spacecraft tumbling toward Earth may already have its parachute ou
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