The prototype thruster could one day propel the first Mars astronauts all the way to the Red Planet.
Scientists have developed a computer simulation that defines the exact orbit and behavior of Planet Nine.
NASA's Mars Reconnaissance Orbiter has identified the site of an ancient lake on the Red Planet's surface.
Scientists believe that wind farms in the North Atlantic could provide enough electricity to power the world.
The SpaceX CEO is set to reveal more about his plans to colonize the Red Planet at an event on Friday.
Rumors of another apocalyptic collision with the mythical planet Nibiru have been circulating the Internet.
Venus, Mars and Mercury will all be temporarily disappearing behind the Moon over the next few hours.
A 'hot Jupiter' world situated 1,400 light years away reflects so little light that it appears pitch black.
For the first time, astronomers have picked up signs of titanium oxide on a distant extrasolar world.
The unknown aircraft, which was being flown by pilot Eric Schultz, went down exactly one week ago.
Astronomers have identified nine planets from which intelligent aliens could potentially be watching us.
Researchers in the US have come up with a revised classification system to help categorize our planet.
The mysterious unmanned shuttle has embarked on yet another mission that nobody knows anything about.
Four of the seven planets in the Trappist-1 system are thought to be home to large amounts of water.
The huge space rock is due to pass within a safe distance of our planet at the beginning of September.
Two upcoming Mars rover missions will attempt to determine if the Red Planet was once home to life.
Scientists have uncovered what is now believed to be the largest volcanic region on the planet.
Astronomers have found an extrasolar world with what has been described as a 'glowing water atmosphere'.
The new employee will be tasked with, among other things, protecting Earth from alien contamination.
An asteroid due to pass the Earth in October is to become a target for a planetary defense exercise.