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3I/ATLAS isn't just older than our solar system—it may be almost as old as the universe itself
Earlier estimates of its age were around 7 billion years, but a new study suggests it’s much older.
The levels of a heavy form of hydrogen in 3I/ATLAS are 30 to 40 times higher than in Earth's oceans, suggesting the comet has a cold and distant origin ...
The interstellar comet 3I/ATLAS is leaving our solar system for good. Here's what to know about its journey and NASA's ...
Add Yahoo as a preferred source to see more of our stories on Google. An illustration showing Planet Nine, a hypothetical, undiscovered planet in our solar system. New research now suggests the ...
Learn how ALMA observations revealed unusually high levels of methanol in interstellar comet 3I/ATLAS and what the molecule’s chemistry may reveal about how icy bodies form around other stars.
The Gaia telescope spotted more than 6,000 sunlike stars, all of which appear to have migrated from the galaxy's center more ...
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