Scientists have released new information about comet 67p and what the Philae lander discovered there.
Astronomers have announced the discovery of planet Kepler-452b, orbiting a star very much like the sun but older and hotter.
Hardware developed for the race to the moon was used to foster collaboration between the two countries.
By studying data from the Kepler probe, scientists have found a planet about the size of Mars, about 200 light-years away from Earth.
A permanent cloud of dust has been found hovering around the moon, caused by the impacts of tiny particles from deep space.
Paving the way for Apollo's missions to the moon, the Gemini program provided much-needed experience for astronauts in space.
When Alexei Leonov stepped out of his Voskhod 2 capsule on March 18, 1965, he became the first spacewalker ever.
For years, tiny payloads have been launched into Earth orbit on satellites smaller than a loaf of bread.
At last humans are able to make educated guesses about what living on alien worlds might be like. Here's what we know about the alien planet Kepler-186f.
For more than 50 years, spacecraft have relied on rockets and tricky maneuvers to get out of danger when missions don't go as planned.
After an explosion crippled the spacecraft, the three astronauts had to fight to make their way back to Earth.
Halley's Comet, a dusty ball of ice and frozen gases, spends most of its time in the chilly outland of the solar system. See what it would be like to live on a comet in this infographic.
An astronaut and a cosmonaut spend an entire year aboard the ISS to provide data on the health implications of space travel.
Titania, an airless moon of Uranus, is cold and its day is 84 years long. See what it would be like for astronauts on Titania in this Space.com infographic.
Titan is probably the least inhospitable place in the outer solar system, but remember to bring oxygen and warm clothing.