Why Don't Gravitational Waves Get Weaker Like The Gravitational Force Does?
Forbes
What are gravitational waves, and why does it matter that we've seen them? Brian Greene stops by to demonstrate an exciting new scientific discovery.
Two black holes, about 29 times and 36 times the mass of our sun, collide in this computer visualization of the event that provided the first direct evidence that black holes exist, can exist in a pair, and can collide and merge. Read more.
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