Tonight and throughout January, stargazers can see a planetary alignment in the night sky or what some are calling a planetary parade.

Across cosmic history, powerful forces have acted on matter, reshaping the universe into an increasingly complex web of structures. Now, new research led by Joshua Kim and Mathew Madhavacheril at the ...

Scientists think a small rock discovered near Earth last August was hurled into space by an ancient impact on the lunar surface.

While the planets are technically always "aligned" along the same plane in our sky, seeing so many at once is a special opportunity ...

Continent-size islands deep inside Earth's mantle could be more than a billion years old, a new study finds.

You might want to keep your eyes on the skies through next month: Six planets will align in January and February.

For much of January and February, you have the chance to see six planets in our solar system after dark, although two — Uranus and Neptune — will be hard to see without a telescope or high-powered ...

Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...

The Blue Ghost lunar lander, built by the Texas-based company Firefly Aerospace for NASA, launched to space on Jan. 15, and ...