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Photographer captures ghostly ripples over Colorado night sky. 'It is rare to see it directly overhead and moving like that'
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Noctilucent cloud season 2025 is upon us! Here's how to spot elusive 'night-shining' clouds
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James Webb telescope spots weird changes on Jupiter's icy moon Europa
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OpinionWhat goes up must come down: How megaconstellations like SpaceX's Starlink network pose a grave safety threat to us on Earth
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Giant 'senior citizen' sunspot on 3rd trip around the sun could break a century-old record
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'No radio astronomy from the ground would be possible anymore': Satellite mega-swarms are blinding us to the cosmos — and a critical 'inflection point' is approaching
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NASA plans to build a giant radio telescope on the 'dark side' of the moon. Here's why.
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Photographer captures ghostly ripples over Colorado night sky. 'It is rare to see it directly overhead and moving like that'
-
Noctilucent cloud season 2025 is upon us! Here's how to spot elusive 'night-shining' clouds
-
James Webb telescope spots weird changes on Jupiter's icy moon Europa
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Opinion
What goes up must come down: How megaconstellations like SpaceX's Starlink network pose a grave safety threat to us on Earth
-
Giant 'senior citizen' sunspot on 3rd trip around the sun could break a century-old record
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'No radio astronomy from the ground would be possible anymore': Satellite mega-swarms are blinding us to the cosmos — and a critical 'inflection point' is approaching
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James Webb telescope uncovers new, 'hidden' type of black hole never seen before
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Hold the syrup: Weirdly perfect 'pancakes' on Venus may prove the planet is buckling
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James Webb telescope breaks own record, discovering farthest known galaxy in the universe
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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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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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NASA plans to build a giant radio telescope on the 'dark side' of the moon. Here's why.
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How many satellites could fit in Earth orbit? And how many do we really need?
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China begins building AI supercomputer in space
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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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