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Giant NASA science balloon completes trip around the world in 16 daysNASA's massive super-pressure balloon has completed a 16-day trip around the Southern Hemisphere — a milestone in high-altitude flight and atmospheric research.
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These are the sharpest images yet of planets being born around distant starsALMA observations of carbon monoxide emission from 15 protoplanetary disks reveal a stunning variety of gas structures, including gaps, rings and spirals.
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Gigantic, glow-in-the-dark cloud near Earth surprises astronomersThe discovery of Eos, the closest known molecular cloud to Earth and one of the largest structures in the night sky, hints at the presence of many previously unseen clouds throughout the galaxy.
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'I won't be surprised if this is happening throughout the universe': Mushball storms on Jupiter offer clues to atmospheres of distant planetsLarge hailstones made of ammonia may explain why the gas is missing from large pockets of Jupiter's atmosphere.
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Ghostly galaxy without dark matter baffles astronomersAstronomers have stumbled upon yet another ghostly galaxy that appears to be devoid of dark matter, the elusive stuff that makes up most of the material universe.
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Mysterious, out-of-place 'Skull' rock on Mars leaves scientists baffledNASA's Perseverance rover on Mars has discovered unusual "float" rocks on the rim of Jezero Crater while searching for signs of ancient microbial life. Scientists are investigating their origin.
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SpaceX's Starlink satellite constellation 'under threat' by Russia and ChinaSpaceX's Starlink internet satellite constellation has become a prime target for Russia and China, according to a new report assessing the counterspace capabilities of a dozen countries over the past year.
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Mercury is weird because of a 'hit-and-run' incident in its youth"What surprised us, at the end, was how effective this type of impact could be in explaining Mercury's unusual structure without needing to consider multiple collisions or extremely rare conditions."
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NASA's daredevil solar spacecraft survives 2nd close flyby of our sunNASA's Parker Solar Probe has completed is 2nd ultra-close flyby of the sun, and survived to transmit its data back to Earth.
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Gaia telescope retires: Scientists bid farewell to 'the discovery machine of the decade' that mapped 2 billion Milky Way starsAfter 11 years mapping the Milky Way, the European Space Agency's Gaia space telescope has retired. Scientists hailed it as "the discovery machine of the decade."
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Atacama Telescope reveals earliest-ever 'baby pictures' of the universe: 'We can see right back through cosmic history'New observations with the Atacama Cosmology Telescope in Chile reveal the earliest-ever "baby pictures" of our universe, showing some of the oldest light we can possibly see.
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NASA astronauts Suni Williams and Butch Wilmore were carried away on stretchers after return from space. Here's why that's normal.When astronauts return from a prolonged visit to space, they are often carried out of their capsules and placed on stretchers. The 'stranded' astronauts Sunita Williams and Butch Wilmore were no exception. Here's why.
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A giant extraterrestrial 'wave' hit Earth 14 million years ago — and may have dramatically altered our planet's climateOur solar system's journey around the center of the Milky Way takes it through varying galactic environments, and one may have had a lasting impact on Earth's climate, according to a new study.
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'This doesn't appear in computer simulations': Hubble maps chaotic history of Andromeda galaxy, and it's nothing like scientists expectedAn ambitious new survey by the Hubble Space Telescope offers the first bird's-eye view of all known dwarf galaxies orbiting the Andromeda galaxy. The data suggests Andromeda had a chaotic past unlike anything scientists expected.
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'Utterly cataclysmic': James Webb telescope spots 2 alien planets disintegrating before our eyesIn world-first observations, the James Webb Space Telescope is watching two distant alien planets "spilling their guts into space" as they rapidly disintegrate — and scientists are elated at what they've found.
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'Iridescent' clouds on Mars captured in Martian twilight in stunning NASA rover images"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact."
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There was nearly 1 rocket launch attempt every 34 hours in 2024 — this year will be even busier"There is reason to have confidence in upward trajectory of the space economy."
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'We were amazed': Astronomers discover oldest, biggest black hole jet in the known universe — and there may be moreAstronomers have used a continent-sized radio telescope to find the largest black hole jet ever observed in the early universe.
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Astronomers catch black holes 'cooking' their own meals in bizarre, endless feeding cycleBlack holes can actively regulate the material they consume, using powerful jets of gas blasted into space, according to a new study. It suggests many such cosmic beasts effectively "cook" their own meals.
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Doorbell camera captures 1st-ever video of the sound and sight of a meteorite crash-landingA doorbell camera recorded a rare video of the moment a meteorite fell outside a home.
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'It was very fortunate timing': Astronomers watch 1st black hole to 'shut off' blast back to lifeThe first black hole that astronomers observed "turning off" just turned back on, releasing jets of hot gas into the cosmos.
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Coolest space missions coming in 2025From a death swirl into Jupiter to "Ghost Riders in the Sky," here are some of the most exciting space missions coming in 2025.
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Potentially habitable planet TRAPPIST-1b may have a carbon dioxide-rich atmosphereThe innermost Earth-like planet in the famous TRAPPIST-1 system might be capable of supporting a thick atmosphere after all, according to new research.
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Parker Solar Probe survives historic closest-ever flyby of the sun, NASA confirmsOn Christmas Eve, NASA's Parker Solar Probe flew closer to the sun than any human-made object ever — a stunning technological feat that scientists liken to the historic Apollo moon landing in 1969. Now, we know it survived.
