NASA astronauts Sunita Williams and Butch Wilmore are finally on track for their long-awaited return to Earth. And they must ...

The road to full recovery from the effects of long-term space travel will likely take months, with astronauts undergoing ...

Water once existed in abundance of at the surface of Mars. How much of that water has been stored in the planet's crust is still unclear, according to a new analysis.

Getting from Earth to space isn’t just about speed—it’s about planning the right trajectory. The Moon, our closest neighbor, ...

D printers will make the tools, structures and habitats space pioneers need to survive in a hostile alien environment.

The European Space Agency (ESA) fires up three of the instruments on the Hera spacecraft and takes images of the smaller ...

Like our moon, Deimos is tidally locked to Mars, meaning the same side always faces the planet—the only side visible to ...

The Red Planet and its tiny moon Deimos were recorded at a very near distance as the asteroid-chasing spacecraft completed a flyby on Wednesday.

Europe's Hera spacecraft flew by Mars this week on its way to catch up with an asteroid and tested out its cameras on the Red ...

More than 3 billion years ago, Mars intermittently had liquid water on its surface. After the planet lost much of its ...

The Hera probe has swung around Mars, using the planet’s gravitational pull to fling itself toward its asteroid target.

While the car-sized spacecraft flew around the Mars system, flight controllers on Earth temporarily lost communication with ...