
Liftoff! European Mission to Mars Launches to Seek Signs of Life
The two robotic spacecraft are the first part of the two-phase European–Russian ExoMars program to hunt for signs of life on the Red Planet

Liftoff! European Mission to Mars Launches to Seek Signs of Life
The two robotic spacecraft are the first part of the two-phase European–Russian ExoMars program to hunt for signs of life on the Red Planet

10 Years at Mars: Mars Reconnaissance Orbiter's Best Images [Slide Show]
NASA’s most prolific interplanetary mission reaches a new milestone in Martian exploration


NASA Reschedules Troubled Mars InSight Mission to 2018
Instrument problems prevented the Martian lander from launching in March 2016 as planned

Satellite Laser Will Map Forests in 3-D
And the data will reveal how much carbon woodlands store

Virgin Galactic Unveils New SpaceShipTwo Unity for Space Tourists
The new vehicle replaces the company's original SpaceShipTwo, which was destroyed in a fatal accident 15 months ago

The Future of Gravitational Wave Astronomy
Fully opening this new window on the universe will take decades—even centuries

NASA to Decide Fate of Troubled Mars Lander Next Month
The space agency will decide whether the InSight heads to the Red Planet in mid-2018, or not at all

GPS and the World's First "Space War"
Satellite-based navigation proved its mettle during the 1991 Persian Gulf War, leading to what some say is an overdependence on “jammable” GPS technology

NASA Picks Tiny Satellites to Ride on Giant Rocket's First Flight
When the Space Launch System launches in 2018, its passengers will be 13 small CubeSats off to explore the solar system

Mirror on the Cosmos: NASA's Next Big Telescope Takes Shape
After more than 20 years the giant mirror of the James Webb Space Telescope is finally complete

Challenger Disaster 30 Years Ago Shocked the World, Changed NASA
On January 28, 1986, the space shuttle exploded just 73 seconds after blasting off, killing all seven astronauts on board

Walking on Enceladus
Newly released images from the Cassini mission's final close flyby of Saturn's icy moon Enceladus reveal further exquisite details of the surface terrain