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To explore the universe humans have made any manner of telescopes. These telescopes can observe visible light, infrared light, radio waves, and even x-rays. 

One of the most important forces in shaping the universe is gravity. How can astronomers observe gravity?

In 2002, the National Science Foundation, Caltech, and MIT managed to build a gravitational observatory. 

Learn more about the Laser Interferometer Gravitational-Wave Observatory or LIGO, the more accurate instrument ever created, on this episode of Everything Everywhere Daily.




Associate Producers: Peter Bennett & Thor Thomsen


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