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How big would an 'alien megastructure' have to be?

8 years 10 months ago
A bizarre flicker of light from space led to the discovery of a still-mysterious star called KIC 8462852, otherwise known as "Tabby's Star," "Boyajian's Star" or the star surrounded by an "alien megastructure."
Jesse Emspak, Live Science Contributor

How vintage rocket tech could be NASA's ticket to Mars and beyond

8 years 10 months ago
Dangerous radiation. Overstuffed pantries. Cabin fever. NASA could sidestep many of the impediments to a Mars mission if they could just get there faster. But sluggish chemical rockets aren't cutting it — and to find what comes next, one group of engineers is rebooting research into an engine last fired in 1972.
Charlie Wood, Space.com Contributor

First cat in space to receive a proper memorial

8 years 10 months ago
When it comes to animals that heroically blasted off into space during the space race, names like Laika the dog or Ham the chimpanzee are probably the first that come to mind.
Hanneke Weitering Space.com Staff Writer

Archaeologists discover 'masterpiece' sealstone in Greek tomb

8 years 10 months ago
It took more than a year to wipe the limestone crust off a 1.4-inch-long stone found in an ancient tomb in Greece, but it would have been time well spent even if it took twice as long — because when the task was completed, researchers from the University of Cincinnati had uncovered a treasure that could rewrite the history of Western Civilization.
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9 minutes 37 seconds ago
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