spacetime
Scientists Think the Speed of Light Has Slowed, and They're Trying to Prove It
A controversial theory that would overturn Einstein’s theory of general relativity could soon be tested.
Is Ryan Lochte's Dog, Carter, a Time Traveler or What?
There's reason to believe that Lochte's dog has broken the rules of spacetime.
Experiment Finds No Evidence the Universe Is a Hologram (But It Still Might Be)
One inconclusive experiment doesn't mean we're any closer to understanding the nature of space-time.
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What Is a Gravitational Wave Detector, and Why Do We Want to Send One to Space?
ESA is getting ready to launch LISA Pathfinder, a mission that will test the technology for a million-kilometer-large gravitational wave detector.
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