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 newly discovered comet is rapidly brightening and could become visible from Earth — if it survives an extreme close ...

“Observing 3I/ATLAS is like taking a fingerprint from another solar system,” explained Nathan Roth, an astronomer at American ...

Experience the awe of a once-in-a-lifetime comet sighting in this video. Discover essential information about the comet’s trajectory and visibility. Learn the best times and locations to view this ...

The JUICE spacecraft captured its first detailed glimpse of interstellar comet 3I/ATLAS, revealing a glowing coma and ...

New data indicates Comet 3I/ATLAS is second only to C/2016 R2 in terms of methanol levels ever recorded in a comet within our solar system.

The Hubble Space Telescope saw Comet 41P stop spinning completely, and then restart, but in the opposite direction.

The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from the a European Space Agency orbiter on its ...

Comet MAPS (C/2026 A1), a "Kreutz sungrazer,” will skim the sun in early April and may put on a brief, dramatic show low in ...

It ain't from around these parts of space.

The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from a European Space Agency orbiter on its way ...

A recently discovered comet is plunging toward a fateful encounter with the Sun, which will determine whether it puts on a spectacular showing during the daylight or if it completely disintegrates ...