Don't look now, but our entire planet is busily chasing after an asteroid a thousand feet across that's preceding the Earth in its orbit. It's the first known Earth-orbit example of what are called ...

A 70-foot rocket blasted off from beneath the wing of a Boeing 747 over the Pacific Ocean Wednesday, marking the second successful orbital flight for rocket startup Virgin Orbit. The plane, nicknamed ...

An asteroid named 2025 PN7 will be sharing the Earth's orbit until 2083. Earth will have a visitor within its orbit for the next several decades, according to astronomers. An asteroid named 2025 PN7 ...

Many maps of the solar system make it look as though everything in space moves in perfect, concentric circles. Planets orbit the sun, and moons orbit the planets. So that must be the case for ...

The United States military is preparing to launch its secretive X-37B space plane on a seventh mission in orbit. The uncrewed vehicle, which resembles a miniature space shuttle, is slated to blast off ...

We've all come to appreciate the beautiful images space telescopes provide us of galaxies, nebulas and more, but they also provide astronomers with important scientific information about our universe.

Update on 5 March: Lead researcher Jack Lissauer says: “Further study of the light curve of this target produced an alternative interpretation wherein one of the co-orbital candidates (KOI ...

WASHINGTON — The startup Starfish Space has secured a $37.5 million contract with the U.S. Space Force to develop, launch, and operate the company’s Otter satellite servicing vehicle in geostationary ...