M87 Black Hole Bulks Up

McDonald Observatory - June 8, 2009

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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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GRO J1655-40

A stellar mass black hole in the constellation Scorpius.

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Birth of Supermassive Black Holes: Battle in the Bulge

Seen from afar, our Milky Way would look something like a pancake with a big blob of melting butter ...More »

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