NASA will brief media at 11 a.m. EST Wednesday, Jan. 29, to provide an update on science results from NASA's OSIRIS-REx ...

ESA’s Hera mission is two-year flight to the Didymos binary asteroid system. See its trajectory here. Credit: ESA - European ...

Mars was at opposition as Earth passed by it in our faster, inner orbit. Mars is still very bright and will continue to be so ...

Astrologer Alexandria Lettman reveals what the stars have in store for every zodiac sign's horoscope on Wednesday, January 15 ...

The two missions will start together at approximately 1:11 a.m. Eastern, out of Florida. But the SpaceX rocket will then ...

"What If is an epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a ...

"it's not completely unusual for asteroids to be near the Earth," Gallagher said. "Our moon is about a quarter million miles ...

Joel Achenbach writes about science and politics for The Washington Post's National desk. He has been a staff writer for The Post since 1990. He started the newsroom’s first online column, Rough ...

Named (887) Alinda, the near-Earth asteroid measures an estimated 2.6 miles (4.2 kilometers) wide and is the size of a mountain. On Wednesday (January 8) the rock made its closest pass at Earth in ...

Larger than 99 per cent of known space rocks, the asteroid ranks among the five largest celestial objects expected to come within 15 billion kilometres of Earth from now until 2200. Jake Foster, a ...

Alinda has made its closest approach to our planet in decades, and it's about to peak in brightness in a rare ...

Don’t space out or you’ll miss it. A once-in-a-generation asteroid broader than the width of Manhattan will be passing by the Earth — and there’s a chance you can see it for yourself.