( The Hill) — Rep. Tim Burchett (R-Tenn.) said Wednesday he believes aliens have underwater bases on Earth.

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.

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

In an article published in Physical Review Letters on Thursday, scientists carried out an innovative study testing the existence of mirror asymmetries in our universe by studying the handedness of the ...