The interstellar comet 3I/ATLAS has shifted from a routine curiosity to a physics puzzle, as NASA and other teams report that ...

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Comet 3I/ATLAS is a visitor that will never call the solar system home. Identified on a one-way path that carries it in and ...

Observations of interstellar object 3I/ATLAS show increased water, carbon dioxide, and organic gas release after its passage near the Sun, based on data from NASA’s SPHEREx mission ...

Interstellar comets are the original cosmic explorers, and by studying their metallic whispers, we are learning the secrets ...

The arrival of 3I/ATLAS in our solar system spawned multiple proposals for a rendezvous mission to study it up close. As the third interstellar object (ISO) ever detected, the wealth of information ...

Astronomers are tracking a visitor called 3I/ATLAS, the third confirmed interstellar object ever observed. The two previous instances were 1I/’Oumuamua in 2017 and 2I/Borisov in 2019. 3I/ATLAS is ...

Scientists found new evidence (or lack thereof) disproving the conspiracy theory that interstellar comet 3I/ATLAS is alien technology.

3I/ATLAS, an interstellar object identified by NASA as a comet, will swing by Earth in its closest approach this week. Scientists have been tracking the comet’s grand tour of our solar system since it ...

For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS—only the ...

Those concerned that 3I/ATLAS' arrival to our solar system meant that some sort of alien invasion was imminent can breathe a sigh of relief. Echoing what NASA officials have long said, a team of ...

Is 3I/ATLAS just a comet — or an intergalactic ark? A NASA spacecraft has discovered organic chemicals on 3I/ATLAS, which ...