space

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Across
  1. 5. an expert about space
  2. 6. very thin, about 100 times wider than its own height
  3. 7. we live in this place
  4. 8. the colossal explosion of a star
  5. 10. when the milkyway and a dwarf galaxy mix
Down
  1. 1. when the milkyway was created
  2. 2. astronomer from university of cambridge
  3. 3. what rix calls enriched metals through supernovas
  4. 4. launched in 2013 to chart the milkyway
  5. 9. a cloud of gas which is slowly forming into a galaxy