Space

While the urine purification system works on the ground, it remains to be seen if it’ll work in space.

NASA has teamed up with DARPA, the Pentagon’s research arm, to revive an idea that failed half a century ago.

The day isn’t precisely 24 hours to the millisecond, not even close.

The finding adds another piece to the puzzle of the Red Planet’s past history.

SpaceX will assess the possibility of accommodating extra astronauts on a Dragon spacecraft for emergency returns.

On its surface, Titan is one of the most Earth-like places in the solar system. More so than we thought.

The new spacecraft will have six times the fuel capacity and four times the power of the current Dragon spacecraft.

Earth’s oceans, continents, and tectonic plates may have much more impact than we thought.

NASA astronaut Matthew Dominick took the photograph while flying over the coast of South Africa.

This finding is the first and most important step to date toward establishing a future human presence on the Moon.

The material, whose origin remains a mystery, has been analyzed according to scientific standards.

Before anyone considers moving to Mars, it will be necessary to know how to survive there. China has a "vital" clue.