The airless chasm between Earth and the ... as the point where space begins, your aeronautic feats become astronautics, and you become an astronaut. If you find this distance oppressive to ...

The X-37B spacecraft’s latest mission was shorter than the last but tried several new maneuvers and approaches during its ...

Astronauts Barry “Butch” Wilmore and Suni Williams are back on Earth after nearly nine months in space and readjusting to ...

If the United States and the former Soviet Union could cooperate on space efforts during the Cold War, then tensions between nations on Earth today don’t have to extend to diplomacy and agreements ...

Space is big ... At about 100 times that distance, the optical gleam of Earth’s city lights would fade to black—better but still far short of even our next nearest star.

"The universe is filled with a range of three-body systems, including the closest stars to Earth, the Alpha Centauri star system, and we're finding that the Kuiper Belt may be no exception!" ...