Tag: Asteroids

‘City-killer’ asteroid 2024 YR4 could hit the moon instead of us, scientists say

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An asteroid that’s big enough to wipe out a city has a 1-in-43 chance of hitting our planet in the year 2032. But according to new calculations, there’s an even smaller chance that it might crash into the moon instead. On Feb. 7, NASA scientists increased the likelihood of asteroid 2024 YR4 colliding with Earth on Dec. 22, 2032, nearly doubling the odds from 1.2% to 2.3%. The potentially hazardous asteroid measures an estimated 180 feet (55 meters) across — about as wide as Walt Disney World’s Cinderella Castle is…

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What the asteroid with a 1-in-48 chance of hitting Earth in 2032 looks like (images)

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It might not look like much in this image, but this is the asteroid that has made a major news impact in 2025. That’s because this space rock, designated asteroid 2024 YR4, has a 1-in-48 chance of impacting Earth in 2032. For obvious reasons, astronomers are desperate to learn as much as they can about 2024 YR4, estimated to be as large as 177 feet wide (54 meters wide). That’s around as wide as Cinderella’s Castle in Walt Disney World Florida is tall. The image featured here was captured on…

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NASA’s Asteroid Bennu Sample Reveals Mix of Life’s Ingredients

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In this video frame, Jason Dworkin holds up a vial that contains part of the sample from asteroid Bennu delivered to Earth by NASA’s OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security – Regolith Explorer) mission in 2023. Dworkin is the mission’s project scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. Credit: NASA/James Tralie Lee esta nota de prensa en español aquí. Studies of rock and dust from asteroid Bennu delivered to Earth by NASA’s OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification and Security–Regolith Explorer) spacecraft have revealed molecules…

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Earth is bombarded with rocks from space — but who gets to keep these ultimate antiques?

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Every day, about 48.5 tons of space rock hurtle towards Earth. Meteorites that fall into the ocean are never recovered. But the ones that crash on land can spark debates about legal ownership. Globally, meteorite hunting has become a lucrative business, with chunks of alien rock traded online and shipped between countries. Meteorites hold the key to the mysteries of the universe, but increasingly, significant scientific finds are being lost to private collectors. Last year, New Zealand formally recorded an apple-sized meteorite weighing 810g. It fell on Department of Conservation…

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NASA to Brief Media on Asteroid Sample Mission Findings

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Jason Dworkin, project scientist for OSIRIS-REx at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, views a portion of the asteroid Bennu sample in the center’s astrobiology lab under microscope in November 2023, shortly after it arrived from the curation team at the agency’s Johnson Space Center in Houston. Credit: NASA/Molly Wasser NASA will brief media at 11 a.m. EST Wednesday, Jan. 29, to provide an update on science results from NASA’s OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security – Regolith Explorer) mission, which delivered a sample of asteroid…

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NASA’s Planetary Defenders Head to the Sundance Film Festival

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Trailer for NASA’s upcoming documentary, “Planetary Defenders,” which will take audiences inside the high-stakes world of asteroid hunting and planetary defense. NASA is bringing the high-stakes world of planetary defense to the Sundance Film Festival, highlighting its upcoming documentary, “Planetary Defenders,” during a panel ahead of its spring 2025 premiere on the agency’s streaming service. “We’re thrilled that NASA is attending Sundance Film Festival for the first time – a festival renowned for its innovative spirit,” said Brittany Brown, director, NASA Office of Communications Digital and Technology Division, at the…

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NASA’s Webb Reveals Smallest Asteroids Yet Found in Main Asteroid Belt

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Illustration of the main asteroid belt, orbiting the Sun between Mars and Jupiter NASA NASA’s powerful James Webb Space Telescope includes asteroids on its list of objects studied and secrets revealed.  A team led by researchers at the Massachusetts Institute of Technology (MIT) in Cambridge repurposed Webb’s observations of a distant star to reveal a population of small asteroids — smaller than astronomers had ever detected orbiting the Sun in the main asteroid belt between Mars and Jupiter. The 138 new asteroids range from the size of a bus to the size of a…

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Lab Work Digs Into Gullies Seen on Giant Asteroid Vesta by NASA’s Dawn

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NASA’s Dawn spacecraft captured this image of Vesta as it left the giant asteroid’s orbit in 2012. The framing camera was looking down at the north pole, which is in the middle of the image. NASA/JPL-Caltech/UCLA/MPS/DLR/IDA Known as flow formations, these channels could be etched on bodies that would seem inhospitable to liquid because they are exposed to the extreme vacuum conditions of space. Pocked with craters, the surfaces of many celestial bodies in our solar system provide clear evidence of a 4.6-billion-year battering by meteoroids and other space debris.…

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2 huge asteroid strikes 36 million years ago didn’t change Earth’s climate over the long haul, study finds

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Two enormous asteroids that struck Earth about 36 million years ago did not cause any long-lasting shifts to our planet’s climate, according to new research. The space rocks, both estimated to be no larger than 5 miles (8 kilometers) wide, impacted Earth within 25,000 years of each other. Geologically speaking, that’s a relatively short period of time, offering scientists a unique opportunity to study how our planet’s climate responded to such an onslaught. Isotopes in the fossils of tiny marine organisms that lived at the time suggest that Earth’s climate…

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Why we can’t just name a quasi-moon ‘Moony McMoonface’

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During the summer of 2022, just after the James Webb Space Telescope started sending us a steady stream of deep-space postcards, astronomer Stephen Finkelstein and his team found a mysterious red splotch in one of those data deliveries. They’d spotted one of the earliest galaxies humans have ever laid eyes on — a realm that represented a distant pocket of the universe our species once couldn’t dream of seeing. And, importantly, they found it on Finkelstein’s daughter’s birthday, a serendipity that blessed this blob with a name: Maisie’s Galaxy. But…

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