A major new study lays out plans for crewed missions to Mars, with the search for extraterrestrial life being a top priority ...

Astronomers have sighted the oldest known stellar explosion, dating back to when the universe was less than a billion years ...

It didn't relent until hundreds of miles of the Central Valley turned into an inland sea, leaving the city of Sacramento ...

A type of chaos found in everything from prime numbers to turbulence can unify a pair of unrelated ideas, revealing a ...

Bispecific antibodies bring multiple tumor-cell-killing mechanisms into play simultaneously. When a T cell is activated and ...

To celebrate Scientific American ’s 180th anniversary, we’re publishing jigsaw puzzles to show off some of our most ...