The Theory of General Relativity seemed truly bizarre when Albert Einstein first articulated it 99 years ago: gravity, the great physicist declared, was no longer to be seen as a force, but rather as the warping of “spacetime,” an amalgam of those two formerly independent concepts. The theory also predicted that violent events should trigger gravitational waves, which would set spacetime rippling, like a vat of cosmic jello. There has been some circumstantial evidence of those ripples, involving changes in orbits of binary stars, but what’s always been missing is a smoking gun, direct observational measurement of a gravitational wave.
The same is true of the Inflationary Universe theory, postulated in the 1980s: just .0000000000000000000000000000000000001 seconds (give or take) after the Big Bang, the theory said, the cosmos underwent a burst of expansion so furious that it was briefly flying apart faster than the speed of light. Exceeding light speed…
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