In 2017, NASA discovered and later confirmed the first interstellar object to enter our solar system. It wasn't aliens. But artist impressions of the object (called 'Oumuamua, the Hawaiian word ...

A once-in-a-lifetime comet is approaching the sun — and it will be visible for the first time in 160,000 years. The comet ...

And high above, comet Hale-Bopp hung suspended like a feathery fishing lure, its tail curving off a bit, as if blown to the side by the punishing wind. One by one, stars winked on in a darkening sky.

A widely held view is that these vital components were deposited on Earth by a long bombardment of icy comets. Comets are made of dust and ice. Astronomers have examined the water contained in ...

After nearly 30 years of developing and administering Telluride Ski Resort’s (Telski’s) Comets program for local children ...

Its speed and path around the Sun don’t match a typical asteroid, but it also has no bright tail or nucleus (icy core) we normally associate with comets. However, 'Oumuamua has erratic motions ...