Light released by a distant star does not simply wink out after crossing some threshold of space. In a vacuum, photons keep moving indefinitely, and astronomers routinely detect light that has ...

Space tourism has opened a new chapter in human travel. The idea of spending a holiday beyond earth is moving closer to ...

Glasgow Clyde College is preparing to make history by broadcasting a lecture into outer space as part of a new course ...

A blue Earth ascends over the barren surface of the moon, against the black void of space. This famous photograph, Earthrise, was taken on Christmas Eve of 1968, by Apollo 8 astronaut Bill Anders.