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Black Hole
18" x 12"
Photographic Print

Black hole. Computer artwork of a black hole and a surrounding accretion disc (red and blue) of material spiralling into the black hole. A black hole is formed when the core of a star collapses under its own weight, increasing its gravitational field to the point where, beyond a boundary known as the event horizon, nothing, not even light, can escape. This leads to its black appearance. Only sufficiently massive stars form black holes, doing so when they have used up the fuel that sustained their nuclear fires. This results in a loss of outwards heat pressure, allowing the total collapse that forms the black hole.