What's the next frontier for retired NASA astronaut Scott Kelly, who spent nearly a year in space; and twin retired NASA astronaut Mark Kelly, who flew multiple times on the space shuttle?
The Missile Defense Agency is evaluating nine proposals for space sensor architectures. With $73 million that Congress already appropriated, the agency will select three to continue on.
Stratolaunch, the company founded by the late billionaire Paul Allen, said Jan. 18 that it is ending work on a launch vehicle that would be flown on the company’s giant aircraft.
There's a new satellite in space, and it was put there to drop "meteors" over the city of Hiroshima.
Sunday night, Jan. 20, will bring the first celestial spectacle of 2019 for skywatchers all across the Americas: a total eclipse of the moon.
Catch the January 2019 total lunar eclipse on your digital devices if weather or circumstances prevent direct viewing of the marvelous celestial event.
Half a century after the first manned space flight, space travel may be about to enter the age of steam.
Two little cubesats will fly with a planned European asteroid mission to get some extra space-rock studies done.
The latest taxi test of the giant aircraft being developed by Stratolaunch for its air-launch system is a sign the plane’s first flight may take place soon.
NASA still hasn't launched its new James Webb Space Telescope, but the agency is already preparing for an even bigger and better space observatory to succeed it.
Before NASA's Mars 2020 mission is ready to launch toward the Red Planet, they have to paint the new rover — a task more challenging than it sounds.
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