The world is starting to get a better idea of what the U.S. military's proposed new space plane might look like.
An unmanned European cargo vessel has linked up with the International Space Station for the last time.
Two Mars-bound spacecraft are both in excellent health ahead of their September arrivals in orbit around the Red Planet, managers for both missions report.
With the arrival of the Rosetta spacecraft to Comet 67P/Churyumov-Gerasimenko, here's a look back at 7 close encounters of 6 comets by 5 spacecraft.
A microwave thruster system that needs no propellant generates a small amount of thrust regardless.
In a newly released image of Jupiter's moon Europa, its frozen, cracked surface has been revealed in breathtaking color. Continue reading →
New NASA gear that could help humanity set up an outpost on Mars has gotten its first test flight.
NASA's next-generation spaceship has successfully completed its most challenging test to date: being dropped from a plane at 35,000 feet (6.6 miles) and parachuting to Earth safely. Continue reading →
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