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Black Holes By Mr. Wheeler Why did i choose this topic? i Chose this topic because i have always been interested in astrophysics. Research question What are black holes and how do they work? Hypothesis: i think that black holes are super dense collapsed stars that are so dense that even light can’t escape it. QuickTime™ and a decompressor are needed to see this picture. Source info • Hubblesites.org • “Black Holes in Our Back Yard” By Richard Talcott • “Galactic Showdown” By Stephanie Warren • “Beyond THE Event Horizon” By Steve Nadis • “How Do We Know Black Holes Exist” By Liz Kruesi What are black holes? QuickTime™ and a decompressor are needed to see this picture. According to Stephanie Warren, “A black hole is an object in space that has such strong gravity that nothing can escape it”(Warren). QuickTime™ and a decompressor are needed to see this picture. Black holes are formed when a dying star collapses. “information about what happens inside a black hole can never leave— a cosmic equivalent to Las vegas”(Talcott). QuickTime™ and QuickTime™ and QuickTime™ andaaa decompressor decompressor decompressor are needed thispicture. picture. are needed see this picture. are neededtototosee QuickTime™ and a decompressor are needed to see this picture. John Michell Quic kTime™ and a dec ompres sor are needed to see this picture. Pierre-Simon Laplace QuickTime™ and a decompressor are needed to see this picture. QuickTime™ and a decompressor are needed to see this picture. There are two types of black holes • Stellar Masses and QuickTime™ and a decompressor are needed to see this picture. • Super MassiveQuickTime™ and a decompressor are needed to see this picture. How do Black Holes Work? “Black holes have such intense gravity because their centers are infinitely dense: All of their mass is packed into one miniature dot. Even light--the fastest thing in the universe—is trapped by their sucking pull”(Talcott). Think about trash compacting everything in Castro Valley to a one-foot square. QuickTime™ and a decompressor this picture. are needed to see Now, compact that square so you can no longer see it. QuickTime™ and a decompressor are needed to see this picture. Once a black hole is formed, it starts to gobble up everything around it (Talcott). Sagitarius A* is made up of material equal to 4 million suns. QuickTime™ and a decompressor are needed to see this picture. www.blackholes.edu So, what is a black hole and how does it work? i hypothesized that black holes were super dense collapsed stars that are so dense, that even light cannot escape. i was right!!! Additional questions • What does the area inside of the event horizon look like? • What happens to the objects as they are being sucked in to the black hole? • How many black holes do we know about? Conclusion Black holes are: Super dense collapsed stars from stars that are at least 20 times bigger than our sun. Black holes work: By reducing everything it engulfs in to a singularity which is super dense has no volume. Black holes are interesting, but i know that my thirst for astrophysics can only be quenched by more research.