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Christa McAuliffe was never able to teach from space, but her lesson plans, now updated to reflect current technology, remain available to all.
Inaccurate? Possibly. Arbitrary? Definitely. But nonetheless, on Nov. 19, the list of confirmed exoplanets topped 500, and that's still worth celebrating.
Using a weather balloon equipped with a camera and speakers, the comedy website Zug played Rick Astley's "Never Gonna Give You Up" music video some 16 miles above the Earth's surface.
Two Russian companies have announced plans to collaborate on constructing a commercial space station, creating a second destination in low-Earth orbit.
Rail guns, which use a magnetic field to accelerate a mass to high speeds, are being looked at by NASA as a potential space launch system.
Exoplanets abound in the orbits around the star HD 10180. European astronomers have spotted at least five planets, with evidence that two others may be present.
A comet struck the planet Neptune some 200 years ago, leaving a blotch of carbon monoxide in the upper atmosphere.
Climate change emissions are cooling the upper atmosphere, decreasing atmospheric density and causing space junk to remain in orbit longer.
Launched on Israel's Shavit launch vehicle Tuesday, the Ofeq 9 spy satellite is capable of monitoring Iran's nuclear program.
Supermassive black holes that have a retrograde spin might produce more ferocious jets of gas, a new theory suggests.
In this video, Capt. Barry Wilmore floats from one end of the International Space Station to the other.
Thanks to DNA analysis and radar, the remains of 16th-century Polish astronomer Nicolaus Copernicus have been identified. Now, the man whose ideas were once considered heresy is now being interred with special honors in a Catholic ceremony.
On its last mission the space shuttle Atlantis will bring 3,000 pounds of US supplies to the International Space Station, as well as a Russian module.
Astronomers have possibly detected a black hole more massive than a billion suns being ejected from a distant galaxy at high speed.
The mysterious hole in space seems to have been blasted into the side of a nebula by jets of gas from young stars.