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

For decades, the biggest obstacle to reaching Mars hasn’t just been the distance, but the grueling seven-to-nine-month ...

Every time the Earth and Mars slow down enough to face each other from the same side of the sun, mission planners get a brief window – a window that comes around only once every 26 months – to ...

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.

Under the best circumstances, a trip from Earth to Mars and back would take a spacecraft three years to complete. And that's during a very specific orbital alignment that occurs once every two years ...

NASA's Jet Propulsion Laboratory recently reached a significant achievement in space travel technology. They successfully tested a lithium-fed magneto.

According to the US Department of Energy, nuclear thermal propulsion can reduce travel times to Mars by up to 25% and, more importantly, limit a crew’s exposure to cosmic radiation. It would also ...