
More than 5,000 worlds exist beyond our solar system. There could be billions more
CNN
This week, find out what happened to Stan the Tyrannosaurus rex, meet elusive snow leopards, learn why Vikings abandoned a perfectly good home, discover a wealth of distant worlds, and more.
For starters, archaeologists found an ancient artificial lake in the Mediterranean. Certain features of the pool aligned with constellations, the team learned, and its horizontal surface served as a mirror for the movements of celestial bodies.
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