New research suggests 67P/Churyumov-Gerasimenko is roughly the same age as the solar system. Scientists determined the comet's age based on its ice.

The 2.5 mile wide comet on which the Philae lander is meant to land is craggy and covered in dust, says Professor Mark McCaughrean from the European Space Agency. "We thought it was going to be a ...

Astronomers have discovered a rare instance of a interstellar comet speeding through the solar system. The 3I/ATLAS was first spotted on July 1 by the NASA-funded Asteroid Terrestrial-impact Last ...