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What Are Gravitational Waves?

Two black holes, each about 30 times as massive as our sun orbited each other for millions of years. An instant before they collided they sent a gravitational shiver across the universe. LIGO scientist Amber L. Stuver explains. Animation by Eoin Duffy. 

Gravitational Waves: The Inside Story

Martin Hendry The Conversation
More than a billion years ago and a billion light years away, two black holes merged. This was a truly cataclysmic event a long time ago in a galaxy far, far away. In Star Wars Darth Vader tells us not to “underestimate the power of the dark side.” This amazing discovery shows how right he was.

Gravitational Waves From a Dance of Black Holes

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.

Can You Tell What A Black Hole Has Been Eating?

Dave Goldberg http://io9.com/can-you-tell-what-a-black-hole-has-been-eating-670216697
If you jump into a black hole, your mass energy will be returned to our universe but in a mangled form which contains the information about what you were like but in a state where it can not be easily recognized. It is like burning an encyclopedia. Information is not lost, if one keeps the smoke and the ashes.
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