Imagine waking up one morning to the realization that everything you know—the sky, the trees, even the people you love—might ...

A team of astronomers claims to have sniffed out a “biosignature” in the atmosphere of a distant planet called K2-18b. But ...

Harvard astrophysicist John Brandenburg believes life once existed on Mars and was destroyed by a nuclear war. His theory, ...

To the disbelief of many, Harvard astrophysicist John Brandenburg believes that intelligent life once existed on Mars and was ...