NASA's Nancy Grace Roman Space Telescope is now fully assembled and ready to begin launch preparations this summer.

The final milestone in construction was reached on November 25, as technicians carefully joined the giant telescope's inner ...

NASA revealed that scientists discovered sugars that are “essential” to life and a “gum-like” substance on the space rock ...

New 3I/ATLAS images from NASA and the ESA suggest the interstellar comet is active as it approaches Earth in December.

NASA's next big eye on the cosmos is now fully assembled. On Nov. 25, technicians joined the inner and outer portions of the ...

Satellites reflect sunlight, Earthshine, infrared and radio waves.

NASA astronaut Jonny Kim flew home from the International Space Station alongside two Roscosmos cosmonauts landing in the ...

NASA's Goddard Space Flight Center in Maryland is facing controversy over potential building closures. Here's what's been ...

By Will Dunham WASHINGTON, Dec 3 (Reuters) - An exponential increase in the number of satellites placed in low-Earth orbit ...

An astronaut on the International Space Station has captured a rare kind of lightning called a sprite while traveling 250 miles above the Texas–Mexico border. Referred to as “space lightning” and ...

Samples collected from the asteroid Bennu are continuing the shed light on the origins of the solar system and how life ...

Russian Soyuz crews are now spending eight months aboard the space station instead of six to stretch supplies and lower costs ...