In “A Brief History of Time,” first published in 1988, the British physicist Stephen Hawking explained how space and time are ...

Time, not space plus time, might be the single fundamental property in which all physical phenomena occur, according to a new theory by a University of Alaska Fairbanks scientist.

There are new hints that the fabric of space-time may be made of "memory cells" that record the whole history of the universe. If true, it could explain the nature of dark matter and much more ...

It's where our concepts of space and time literally no longer make sense," Hennigar told Space.com back in March. "If black holes do not have singularities, then they are much more ordinary." ...

Whitson explained to Low that the research the Ax-4 astronauts are conducting on orbit is not only helping the science community, but also the growing number of international partnerships in space.