A rare celestial event is about to unfold as Comet C/2025 A6 (Lemmon) hurtles toward Earth. The comet was first spotted on ...

Avi Loeb said bases this hypothesis on a July 21 image captured by the Hubble Space Telescope and shared by NASA.

Our new results provide the strongest evidence yet that at least some Halley-type comets carried water with the same isotopic ...

ALMA observed water in Halley-type comet 12P/Pons-Brooks that was similar to Earth’s oceans, indicating the role of comets in ...

NASA’s Hubble Space Telescope has captured the sharpest-ever view of the interstellar comet 3I/ATLAS, revealing clues about ...

Although faint, Comet Wierzchoś can be picked up by larger scopes as it passes near the planetary nebula NGC 6058 this ...

Hubble has taken the clearest image to date of the interstellar comet 3I/ATLAS, which is racing through our solar system at ...

An interstellar comet spotted by NASA is headed for our solar system, showing up near Earth later this year, but it's another ...

The fastest interstellar object continues to be bizarre; is it rotating weirdly or is something off about its surface?

NASA’s Hubble Space Telescope has snapped images of a recently discovered interstellar visitor hurtling through our solar ...