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.

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 ...

there are signs that it's brightness (based on the Comet Observation Database/COBS) is slowly beginning to perk-up again during the first half of July. Telescopes reveal that the comet's dusty ...

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 ...

A 15th-century copper plate inscription from Srisailam reveals India's first epigraphic Halley`s Comet sighting, dated June ...

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 ...