Astronomers have spotted unusual molecular activity in the largest Oort Cloud comet, comet Bernardinelli-Bernstein (C/2014 ...

Astronomers discovered that C/2014 UN271, a massive comet more than 10 times larger than any known comet, is emitting jets of ...

The monstrous 85-mile-wide comet C/2014 UN271 is the second most distant body originating from the Oort Cloud found to be ...

Comet Nishimura came into NASA's STEREO-A spacecraft's field of view. The solar wind was interacting with the tail of the comet in the footage. Credit: NASA/STEREO/Karl Battams | edited by Space.com's ...

Vomit Comet “These measurements give us a look at how this enormous, icy world works,” said lead author Nathan Roth of American University and NASA Goddard Space Flight Center. “We’re seeing explosive ...

The comet appears to burn a bright, lime green color in photographs. But Fraknoi says don't look for something green in the sky. "The naked eye just shows a fuzzy white glow," he said.

The comet's approach toward Earth coincides with a total solar eclipse on April 8. Around that time, 12P/Pons-Brooks will be at or near perihelion, the point during orbit when it's closest to the sun.

When it was discovered in 2017 C/2017 K2 Panstarrs was 16 times the Earth-Sun distance. It’s a big comet, with the Hubble Space Telescope reckoning it to have a nucleus of about 11 miles/18 ...

Comet A3 could be bright enough to see with naked eye 02:27. BOSTON - It isn't often that we get the chance to see a comet with the naked eye.But, in a year already filled with so many ...