Every constellation has something within its borders worth tracking down, if you just look hard enough. Here are five to ...

This list of commonly confused terms in astronomy will help you better understand the cosmos and the common phenomena we see ...

As the ISS ages and is eventually decommissioned, private companies may operate the orbital platforms of the future.

For thousands of years, humans have worshipped the Sun. Our ancestors built monuments and temples to it, and used it to mark the annual cycle of seasons. For ancient Egyptians, their most ...

Rainbows may be a trick of the eye, but they’re also based in fascinating optical physics. Here's how they work and why we ...

A six-mile-thick crust of methane trapped in water ice could explain many of the saturnian moon's weird properties ...

NASA has identified nine locations near the Moon’s south pole for the first crewed lunar landing since Apollo 17.

Mars’ features are starting to become visible, Mercury appears in the evening sky, and the Trifid Nebula glows in the sky ...

Astronauts have voted from the space station since 1997 and have cast ballots in nearly every U.S. presidential election ...

A century ago this month, a brash astronomer leaked a discovery that opened our view to the cosmic distance scale and the ...

A third, tenuously held companion to the known binary V404 Cygni may signal that at least some black holes form "gently." ...