NASA's infrared telescope SPHEREx captured stunning images of interstellar comet 3I/ATLAS as it exited the solar system.

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

New infrared observations reveal that the rare interstellar visitor known as comet 3I/ATLAS has dramatically brightened ...

Researchers from the Max Planck Institute for Extraterrestrial Physics in Germany and the Centro de Astrobiología, part of ...

NASA’s SPHEREx mission observed infrared emissions from interstellar comet 3I/ATLAS, documenting changes in dust, gas, and ...

A 13-atom molecule containing sulfur has been discovered in interstellar space for the first time, providing insight into the ...

3I/ATLAS is the third interstellar visitor ever to visit the solar system having been formed around a distant star. Tune in tonight (Jan. 22) to watch live views of interstellar comet 3I/ATLAS at ...

In the heart of our galaxy, scientists have discovered the largest sulfur-bearing molecule ever detected beyond Earth, with ...

CAPE CANAVERAL, Fla. (AP) — A stray comet from another star swings past Earth this week in one last hurrah before racing back toward interstellar space. Discovered over the summer, the comet known as ...

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A team of astronomers found no radio signals from the comet that would suggest it is an extraterrestrial spaceship. The comet was confirmed in July 2025 as the third known object to enter our solar ...