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| Death Spiral Around a Black Hole Yields Tantalizing Evidence of Event Horizon. NASA's Hubble Space Telescope may have, for the first time, provided direct evidence for the existence of black holes by observing the disappearance of matter. |
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| Google PR |
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| [ Teens/Mature Teens ] - A NASA article describing the likelihood that a black hole can be found at the center of the Milky Way Galaxy. (February 21, 2002) |
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| Google PR |
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| [ Teens/Mature Teens ] - Educational sequence suitable for high school students. |
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| Google PR |
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| [ Mature Teens ] - Commonly-asked questions, and a way to ask an astronomer a question about black holes. |
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| Google PR |
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| [ Teens/Mature Teens ] - Answers to black hole questions like 'How big is a black hole?' ,'How do black holes evaporate?', and 'What is a wormhole?'. |
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| Google PR |
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| [ Teens/Mature Teens ] - Information about black holes and how we know they exist, links to glossary terms and a movie about a 'Journey into a Blackhole.' |
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| Google PR |
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| [ Kids ] - What is a black hole and how do we know it exists?(for K-4th graders) |
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| Google PR |
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| [ Teens/Mature Teens ] - Offers a non-technical discussion about black holes and neutron stars. Topics include what they are, how they are form, and how to detect them. |
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| Google PR |
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| [ Teens/Mature Teens ] - Fall into a black hole on a real free fall orbit. All distortions of images are real, both general relativistic from the gravitational bending of light, and special relativistic from the near light speed orbit. |
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| Google PR |
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| [ Kids/Teens/Mature Teens ] - Black holes are some of the most amazing objects in the universe -- they may even hold many galaxies together! Learn all about them! |
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| Google PR |
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