Life Cycle of a Star

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Across
  1. 4. As a star begins to use hydrogen further from its core, it begins to grow and cool, changing color
  2. 5. huge explosions in space that could also be called thermonuclear. Needs a binary star system
  3. 8. after the supernova, anything left of the star is squashed and compacted into a small dense object that pulls in gas, dust, stars, etc.
  4. 9. these are often called failed stars, since temperatures and pressures were never high enough for nuclear fusion to begin
  5. 10. very short and intense bursts of gamma-ray radiation
  6. 11. huge explosions in space that take place during the final stages of some stars lives
  7. 12. These stars are fusing hydrogen into helium, spending about 90% of their lives in this stage
Down
  1. 1. These stars use up their hydrogen and helium in their cores within a few million years, until the star collapses under its gravity and an explosion occurs
  2. 2. bright, hot, compact star that is the same volume as Earth but contains about as much mass as the sun
  3. 3. The collapsed core of a massive star remains after a supernova explosion
  4. 6. A dense rotating object that gives off a beam of radiation from each of its magnetic poles
  5. 7. the final stage in a low-mass star's life