Exoplanets aren't the only objects floating around other stars—they likely have comets and asteroids as well. Even some of ...
LIGO observatory near Richland confirmed Einstein’s theory of relativity, it also has proven one of Hawking’s theorems.
We previously covered one such “gravity telescope” with the Laser Interferometer Gravitational-Wave Observatory (LIGO). Another one is the Japanese project Kamioka Gravitational Wave Detector (KAGRA).
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