Some 22,500 miles above Earth, a spacecraft filled with thruster fuel will gas up two orbiting Space Force assets.

Named for Nancy Grace Roman, who served as NASA's first chief astronomer, it will be located approximately 1.5 million ...

The James Webb Space Telescope (JWST) has been studying the scene of a dramatic collision between a star and its planet, but ...

Over 4000 exoplanets, i.e., planets orbiting stars other than the Sun, are known to exist. Many of these worlds are ...