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Know Your Meme is a website dedicated to documenting Internet phenomena: viral videos, image macros, catchphrases, web celebs and more.

The Day When We Saw Two Black Holes Merging Into One


Two years ago on this day, a group of astrophysicists picked up a signal of gravitational wave emitted during the merge of two black holes nearly 1.3 billion light-years away from home, confirming Einstein's decades-old theory of general relativity and ushering in a new era of gravitational-wave astronomy.

September 14th, 2017 7:00 PM

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