Earth’s orbit is filling up with junk. Greenhouse gases are making the problem worse. At any given moment, more than 10,000 satellites are whizzing around the planet at roughly 17,000 miles per hour.

Romance novels thrive on familiarity and the promise of a happily ever after (or a happy for now), and their covers likewise ...

A breathtaking new video compresses more than a decade of deep-space observation into a few seconds, revealing the hypnotic ...

VATICAN CITY (AP) — Black smoke poured out of the Sistine Chapel chimney on Wednesday, signalling that no pope had been ...

After the ballots are pierced, they are burned in a cylindrical stove at the end of the voting session. Black smoke from the ...

It's not easy to tell if a hacker has taken control of your PC's webcam. But these five signs are your best bet at knowing!

For years, astronomers have toyed with the idea that the Sun hides an extra planet so distant and dim that even the best ...