SpaceX tapped cryptocurrency billionaire Chun Wang to lead a private crewed mission around Mars and the moon. Here's ...

For decades, one of the biggest challenges of sending humans to Mars hasn’t just been getting there, it’s getting back.

A researcher says he found a possible shortcut to Mars that would halve the time it takes to travel to the planet and back to less than a year.

Space missions could left in preil after a new study revealed an unexpected risk facing astronaut crews. Researchers who ...

Landing humans on Mars could teach us whether life ever existed beyond Earth, how planets change over time, and how humans can live on other worlds. By studying Mars up close, astronauts could answer ...

A prototype ion engine that uses lithium vapor as a propellant has aced its first tests, achieving 25 times more power than previous ion engines.

A health scare prompted the first ever early return from the International Space Station for a medical reason. Does it change ...