Environmental Graffiti

Supermassive Black Hole at the Center of the Milky Way

Astronomers made a spectacular announcement in late fall, 2008. Suspected for several years, a massive black hole has been identified at the galactic center. Black holes are still difficult to understand. They are created by the gravitational collapse of the most massive stars. Some of the star's material is blown away in a colossal explosion called a supernovae.

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