Explorers, astronauts and filmmakers described life in space and on Earth in an epic livestream from the Drake Passage.

The 21-month trip to Mars poses a litany of problems, particularly keeping people healthy. Could hibernation be an answer?

Harnessing this energy could make voyages to the outer reaches of the Solar System — or even to neighboring stars — feasible ...

As astronauts venture further into space, their exposure to harmful radiation rises. Researchers from Columbia University are ...

The answer depends on many factors, including the amount of fuel needed, the moon's orbit and the mission's objectives.

The question of whether time is reversible remains one of the biggest unresolved questions in science ... time travel. One concept involves wormholes, or hypothetical tunnels in space that ...

which could set an exciting precedent for future space travel. The satellite, called LignoSat, was created by Kyoto University and Japanese construction company Sumitomo Forestry in a preliminary ...