JF flew about 199,000 miles (320,000 km) away from Earth. It's estimated size is about 34 feet wide (10 meters), roughly the ...

Earth reaches aphelion every July, and this year it occurs on Thursday at 3:55 p.m. Eastern time. That Earth has an aphelion is a result of its orbit being elliptical, rather than circular.

From a bar in the clouds to finding more water from the Moon, outer space is constantly surprising us. A vast universe Think ...

Stargazers in the U.S. will find the slender form of the crescent moon roughly 20 degrees above the western horizon right at ...

CALIFORNIA — The four-person civilian Fram2 mission returned home in a splash down off the coast of California on Friday after being the first humans to orbit Earth's polar regions. Riding in ...

NASA's new "CODEX" telescope has snapped its first photos of the sun's outer atmosphere, revealing previously imperceptible changes that could help scientists better predict potentially dangerous ...