The solar-powered probe will have some company when it begins to explore the Jovian system in 2016.
Deep ocean searchers have found what some are calling a UFO on the ocean floor. But are there other explanations?
Space Exploration Technologies plans to park its second Dragon capsule at the space station.
The large complex would pose a space debris risk if left in orbit after its life cycle.
BBC astronomy presenter Mark Thompson forgets the tough astronaut training and ponders the fun and games you can have in space.
The shuttle's smooth landing closes the curtain on a 30-year program that carried people to space.
As Space Shuttle Atlantis left the space station, it remained uncertain when another U.S. spacecraft would return.
Will bootprints in the Martian soil be a part of our future, or will the interplanetary trip prove too hazardous for humans?
The U.S. President joked with the space station astronauts on Friday, but had a heartfelt message for the final shuttle crew.
The crew of shuttle Atlantis had a shock last night when an alarm was triggered. Discovery News space correspondent Irene Klotz asked commander Chris Ferguson what it was like.