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Interstellar comet 3I/ATLAS could be turning bright green, surprising new photos reveal
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When is the next full moon?
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'Incredibly exciting': NASA claims it's found the 'clearest sign' yet of past life on Mars
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Confirmed! Black hole merger shows Stephen Hawking theory was right
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When is the fall equinox, and why does it happen?
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Asteroid Apophis flyby will be 'once in a millennium' opportunity for skywatchers and scientists
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NASA spots bizarre 'turtle' on Mars
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Interstellar comet 3I/ATLAS could be turning bright green, surprising new photos reveal
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When is the next full moon?
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'Incredibly exciting': NASA claims it's found the 'clearest sign' yet of past life on Mars
-
Confirmed! Black hole merger shows Stephen Hawking theory was right
-
When is the fall equinox, and why does it happen?
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Asteroid Apophis flyby will be 'once in a millennium' opportunity for skywatchers and scientists
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NASA spots bizarre 'turtle' on Mars
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Gigantic 'letter S' spotted on the sun just before a 'dark eruption' hurls a fiery shadow at Earth
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I watched scientists view the interstellar comet 3I/ATLAS in real time. Here's what they saw.
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Will the James Webb telescope finally lead us to alien life?
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Cosmic rays could help support alien life on worlds outside the 'Goldilocks zone'
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Controversial paper questions whether interstellar visitor 3I/ATLAS is 'possibly hostile' alien tech in disguise
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Aliens: Facts about extraterrestrial life and how scientists are looking for it
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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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Human stem cells become more active in space — and that's not a good thing
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'Why would you even want to go?': Readers react to the hypothetical 400-year voyage to Alpha Centauri
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Ghostly 'spiral' photobombs Perseid meteors over several US states — and experts are unsure what caused it
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Poll
Would you board a spacecraft that takes 400 years to reach Alpha Centauri?
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Jim Lovell, commander of NASA's Apollo 13 moon mission, dies at 97
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Proposed spacecraft could carry up to 2,400 people on a one-way trip to the nearest star system, Alpha Centauri
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SpaceX just launched disease-causing bacteria to the International Space Station
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SpaceX’s Starlink satellite constellation is interfering with radio telescope observations
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After 54-year wait, Australia's first attempt at an orbital rocket crashes 14 seconds after liftoff
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