A Journey into a Black Hole Collision
A Journey into a Black Hole Collision : The existence of black holes has been theorised for more than 200 years. Initially just a philosophical idea, there is now strong evidence that most, if not all galaxies contain black holes millions or billions of times heavier than our Sun. Black holes themselves cannot be observed since, by definition, no light can escape them, but astronomers can study the effects of black holes on their surroundings.
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