This new propulsion system could rewrite the rules of spaceflight—not to mention completely defy conventional physics.

If gravity arises from entropy, scientists could unite Einstein's general relativity with the quantum realm while shedding light on dark matter and dark energy.

You're probably wondering how astronauts get comfortable while sleeping. Since there's no gravity in outer space, nobody needs a bed. However, astronauts still need to ensure they don't ...

But as there’s no gravity in space, astronauts don’t have too many opportunities to go for a walk, meaning their feet face little pressure. ‘After six months to a year, you gradually lose ...