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Black Holes Encyclopedia


Latest News
M87 Black Hole Bulks Up

McDonald Observatory — June 8, 2009

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 Featured Question
What is a black hole?

A black hole is an object with such powerful gravity that nothing can escape from it, including light.

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 Featured Object
G1

A intermediate mass black hole near the Andromeda galaxy (M31).

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 Basics
Birth of Stellar-Mass Black Holes: Gravity's Victory

At the heart of every star, a battle is taking place. In a way, it's a battle between matter and rad...More »

Karl Gebhardt's ResearchNASANastional Science Foundation

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