Tour: Einstein's Theory of Relativity, Critical for GPS, Seen in Distant Stars from The Beautiful Universe: Chandra in HD

The Beautiful Universe: Chandra in HD

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Tour: Einstein's Theory of Relativity, Critical for GPS, Seen in Distant Stars

1 seconds Posted Oct 22, 2020 at 10:00 am.

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What do Albert Einstein, the Global Positioning System (GPS), and a pair of stars 200,000 trillion miles from Earth have in common?