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The Day Hubble Space Telescope Discovered “Dying Pulse Train”
Friday, April 6, 2012 21:31
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It was an extraordinary event in the history of the Hubble Space Telescope and astronomers using it.
It was more than ten years ago, when NASA's Hubble Space Telescope for the first time provided direct evidence for the existence of black holes by observing the disappearance of matter as it falls beyond the "event horizon," the boundary between a black hole and the outside universe.
This evidence was found when astronomers were watching the fading and disappearance of pulses of ultraviolet light from clumps of hot gas swirling around a massive, compact object called Cygnus XR-1, located 6,000 light-years from Earth in the summer constellation Cygnus the Swan. Rest of article with all images here:
