An icy ‘Oumuamua may have lost enormous amounts of material during a journey lasting hundreds of millions of years between ...

UK astronomers have uncovered new clues about the origin of 3I/ATLAS—only the third known object from beyond the solar system ...

Scientists studying the interstellar object ‘Oumuamua have proposed that it may be a fragment from a Pluto-like planet beyond ...

Interstellar comet 3I/ATLAS contains exceptionally high levels of methanol, suggesting it formed under conditions very different from those that shaped most comets in our solar system. ALMA also ...

Scientists at the SETI Institute recently searched for technological signals from 3I/ATLAS, the third interstellar object observed in our solar system. Using the Allen Telescope Array (ATA) at the Hat ...

3I/ATLAS is surrounded by “a complex jet structure,” new images show, sparking fresh speculation that the Manhattan-sized interstellar object could be an artificial alien craft. The images, captured ...

Much about interstellar objects still eludes us, but researchers figured out what it would take for a hypothetical space rock to collide with Earth. Simulations found that potential impactors are most ...

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Just as mysterious interstellar object 3I/ATLAS reemerged from behind the Sun last week, astronomers detected intriguing radio signals from it that give new clues about its chemical composition.

Add Yahoo as a preferred source to see more of our stories on Google. For months now, astronomers have been closely watching the mysterious interstellar object 3I/ATLAS as it rips through the solar ...

Add Yahoo as a preferred source to see more of our stories on Google. An interstellar comet that blazed past the sun and swung by Earth last year could be nearly three times older than our solar ...

So far, we’ve had only 2I/Borisov and Oumuamua confirmed as interstellar. The mere prediction of more arrivals doesn’t address many issues that are very relevant. In our system, these things are ...