The school-bus-sized observatory launched on April 24, 1990 and overcame early setbacks to become one of the most ...

He wasn't wrong—the sun is 99.8 percent of the mass of the solar system. But what is that giant ball of fire in the sky? How ...

NASA's Lucy spacecraft flew about 600 miles above an asteroid named Donaldjohanson on Easter Sunday sending back the first ...

NASA's Lucy spacecraft has beamed back pictures from its latest asteroid flyby, revealing a long, lumpy, odd-shaped space ...

The St. Louis Cardinals have been pretty solid pitching-wise so far this season, but that doesn't mean that everything is ...

Hubble Space Telescope images of Jupiter have been "photo-mapped onto a sphere," and animated into a full rotation, according ...

St. Louis faces the New York Mets at 12:40 p.m. (St. Louis time) on Sunday. The Cardinals hope to avoid a four-game sweep.

Kodai Senga and the New York Mets unplugged the Cardinals for nine innings Saturday and sent them to their eighth loss in ...

NASA’s Lucy mission is about to fly past asteroid Donaldjohanson, a strange, elongated rock in the main belt. While this ...

NASA is actively working on planetary defence against asteroids that could threaten Earth. Their new documentary highlights efforts being made.

Astronomers since then indeed have discovered worlds, called circumbinary planets, orbiting two stars. But for sheer ...

The St. Louis Cardinals had a long offseason. There weren't a lot of moves made -- or pretty much any at all. The front ...