On September 14, 2015 gravitational waves were detected from the collision of two black holes 30 times the mass of the sun, a billion light years away. This detection was made by LIGO, the Laser Interferometer Gravitational-wave Observatory, and it was the first time gravitational waves were directly observed.
How We See the Unseeable in Space
Measuring these waves is a major accomplishment for science because nearly everything we know about the universe outside the Earth comes from looking into…
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