Following its groundbreaking flyby of Pluto, the probe is now on its way to another Kuiper Belt object.
The SpaceX CEO has a timetable for getting to Mars that could edge out NASA's manned mission schedule.
A 'cold spot' that has puzzled scientists for years could be the point where two universes collided.
Scientists have been trying to work out what the weather might be like on this recently discovered world.
The US space agency has decided against placing astronauts aboard its new rocket on its first launch.
Astronomers have been analyzing the atmosphere of a Neptune-sized planet located 430 light years away.
Some of the world's most respected scientists have penned an open later in response to a recent article.
Scientists have revealed the extent of the volcanic activity that is occurring on Jupiter's moon Io.
A crew of astronauts will spend a year in orbit around the Moon as a trial run for a mission to Mars.
When complete, the gargantuan new rocket will be capable of carrying a crew of astronauts to Mars.
Cassini's second dive between Saturn and its innermost ring has yielded more breathtaking photographs.
The US Air Force's mysterious space plane has landed in Florida after spending nearly two years in orbit.
Scientists at NASA have been drawing up plans for the demolition of the International Space Station.
There are now only eleven usable EMU spacesuits left and new ones won't be available for several years.
Professor Stephen Hawking is making a documentary about humanity's need to colonize other worlds.
A young solar system located a mere 10 light years away appears to be remarkably similar to our own.
The private space firm succeeded in sending a top secret US military satellite in to orbit this morning.
Richard Branson's fledgling space tourism firm is aiming to begin flying tourists in to space next year.
A new proposal has been put forward to send a spacecraft to look for signs of alien life on Europa.
NASA's Cassini spacecraft has captured a series of impressive new photos during its death-defying dive.