A region of a galaxy that is collapsing into a large black hole at the center. Also known as quasi-stellar objects, quasars shine brightly before they are sucked into the black hole.
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The timeline below shows where the term Quasars appears in A Brief History of Time. The colored dots and icons indicate which themes are associated with that appearance.
Chapter 6
...proposed before they were found. In 1962, Maarten Schmidt found what is now called a quasar, a whole region of a galaxy falling in on itself. In 1967, Jocelyn Bell-Burnell and...
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...at the center of the galaxy. Even larger ones could lie at the center of quasars. Objects orbiting such massive black holes would lose matter and energy into it, causing the...
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