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Inaccurate? Possibly. Arbitrary? Definitely. But nonetheless, on Nov. 19, the list of confirmed exoplanets topped 500, and that's still worth celebrating.
Two Russian companies have announced plans to collaborate on constructing a commercial space station, creating a second destination in low-Earth orbit.
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.
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.