Massachusetts takes center stage in Shark Week, as a wildlife biologist swims with ‘big as hell’ sharks off the South Shore: ...

Explaining the passage of time has been a gnarly problem in physics basically forever, but physicist and computer scientist ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Last year, an interstellar traveler entered our solar system. Some speculated that it was an alien spacecraft, but it turned ...

Group set up by Harvard professor Avi Loeb to advise White House, Pentagon, FBI and American intelligence community on ...