On March 8, ALMA spotted a pair of jets blasting out of the comet's nucleus – its solid icy core. Spectrometry revealed that ...

The monsterous 85-mile-wide comet C/2014 UN271 isn't just the largest icy rock in the Oort Cloud, it's the second most ...

NASA observes largest Oort Cloud comet, C/2014 UN271, exploding with CO gas jets, thanks to ALMA’s deep-space capabilities.

A team of astronomers has made a groundbreaking discovery by detecting molecular activity in comet C/2014 UN271 ...

A newly discovered comet, called C/2025 F2 (SWAN), ... EarthSky has reported that recent observations suggest the comet completes one orbit around the sun every 2.1 million years.

In recent months there has been a gradual build-up of excitement regarding the approach of a new comet with the moniker, Tsuchinshan-ATLAS, cataloged officially as C/2023 A3. Comet Tsuchinchan ...

You can still see Comet A3 if you’re in the Northern half of the globe! This comet is in the Unistellar App Catalog, so it is easy to observe. To make a Science observation, visit the Comets Tutorial ...

Currently, it displays the classic look for a bright comet, flaunting a starlike head and a prominent tail.As we crossed over from September into October, a consensus of observations reported on ...

When comet C/2024 G3 reaches perihelion, it will come within just 13.5 million kilometers of the sun—for context, Mercury, the planet closest to the sun, orbits the star at a distance of 47 ...

The latest ground-based observations from telescopes do seem to imply the comet has fallen apart, said Dr. Karl Battams, a computational scientist within the Solar and Heliospheric Physics Branch ...

While some comet experts think Comet Tsunchinchan-ATLAS (C/2023 A3) will "soon be no longer," others think it's doing just fine.