Scientists have developed a computer simulation that defines the exact orbit and behavior of Planet Nine.
The Chinese space agency's Tiangong 1 space laboratory will hit the ground within the next few months.
NASA's Mars Reconnaissance Orbiter has identified the site of an ancient lake on the Red Planet's surface.
A new study has cast doubt on the idea that astronomers have discovered a large alien structure in space.
Lockheed Martin is aiming to place a space station around Mars and to land astronauts on its surface.
The launch of the giant orbital telescope has been pushed back from October 2018 to Spring 2019.
The spacecraft embarked upon the first of its final five orbits around the gas giant earlier today.
Astronomers believe that they may have found, for the first time, a moon orbiting an extrasolar planet.
In a world-first, China has succeeded in using quantum entanglement to send data to a satellite.
NASA's Juno probe will soon be embarking on a long-awaited flyby of Jupiter's most prominent feature.
For the first time ever, scientists have observed two supermassive black holes orbiting one another.
A French scientist is working on a novel new way to keep Earth's orbit clear of defunct satellites.
NASA's Mars Reconnaissance Orbiter has discovered a rather unusual feature on the planet's surface.
The mysterious star has been puzzling astronomers for years due to its erratic, inexplicable behavior.
Scientists have been trying to work out what the weather might be like on this recently discovered world.
A crew of astronauts will spend a year in orbit around the Moon as a trial run for a mission to Mars.
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.
The private space firm succeeded in sending a top secret US military satellite in to orbit this morning.
NASA's long-lived Cassini spacecraft will soon begin its first in a series of final orbits around Saturn.