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Black hole quiz: How supermassive is your knowledge of the universe?
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Aurora activity is just getting started. Here's why the best northern lights are yet to come.
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Where would a compass point in outer space?
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NASA warns of potential 'catastrophic failure' on leaking ISS — but Russia doesn't want to fix it
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Astronomers spot 1 of the most powerful 'sonic booms' in the universe as massive galaxy crashes into its neighbors
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Scientists trace origin of Earth's mysterious 'minimoon' days before it escapes into space for 30 years
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'Impossible' black holes discovered by the James Webb telescope may finally have an explanation
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Aurora activity is just getting started. Here's why the best northern lights are yet to come.
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Scientists trace origin of Earth's mysterious 'minimoon' days before it escapes into space for 30 years
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'Impossible' black holes discovered by the James Webb telescope may finally have an explanation
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Could a supernova ever destroy Earth?
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China reveals secrets of 1st sample taken from the far side of the moon — and it contains a volcanic surprise
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Scientists analyze largest map of the universe ever created — and it proves Einstein right yet again
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James Webb telescope uncovers 1st-ever 'Einstein zig-zag' hiding in plain sight — and it could help save cosmology
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Space photo of the week: Stare into the 'bloodshot eyes' of a haunting galaxy pair
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China's Mars rover Zhurong finds possible shoreline of ancient Red Planet ocean
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The fastest-moving stars in the galaxy may be piloted by intelligent aliens, new paper suggests
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UFO whistleblowers tell Congress 'we are not alone in the cosmos'
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It would be easier to find aliens in a parallel universe than in our own, new multiverse study claims
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Does alien life need a planet to survive? Scientists propose intriguing possibility
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Father-daughter team decodes 'alien signal' from Mars that stumped the world for a year
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Alien civilizations are probably killing themselves from climate change, bleak study suggests
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'Space trash' will lead us to intelligent aliens, Harvard astrophysicist Avi Loeb says
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Infamous 'Wow! signal' that hinted at aliens may actually be an exceptionally rare cosmic event
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SETI searches for alien life in over 1,000 galaxies using unexplored radio frequencies
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NASA warns of potential 'catastrophic failure' on leaking ISS — but Russia doesn't want to fix it
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Students' 'homemade' rocket soars faster and farther into space than any other amateur spacecraft — smashing 20-year records
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Space Force's mysterious X-37B begins 'aerobraking' to lower orbit. Here's how it works.
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World's 1st wooden satellite arrives at ISS for key orbital test
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Death of alien-hunting Arecibo Telescope traced to cable issues 3 years earlier, 'alarming' report finds
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North Korea launches intercontinental ballistic missile to space, reaches record altitude
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Voyager 1 loses contact with NASA, turns on retro transmitter not used since 1981
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ISS leaks among 50 'areas of concern' for astronaut safety: report
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Boeing-made satellite shatters in orbit, and nobody knows why
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