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In the night sky: Orion
In the night sky: Orion

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Orion Glossary


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S

supermassive black hole

A term used to describe black holes, implying that they have very much more mass than would be expected from a black hole that originated as the remnant of a single star.


supernova

A dramatic stellar explosion, produced when a star several times the mass of the Sun has exhausted its nuclear fuel.



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