DEEP SPACE AND BEYOND

12345678910111213
Across
  1. 2. - A cloud of gas and dust in space
  2. 6. - Unit of distance equal to one million parsecs
  3. 7. - Unit of astronomical distance equal to 3.26 light-years
  4. 9. - Astronomer who proved galaxies exist beyond the Milky Way
  5. 11. - Outer atmosphere of the Sun or a black hole
  6. 12. - Rapid expansion of the very early universe
  7. 13. - Dark matter envelope surrounding a galaxy
Down
  1. 1. - The spread of light wavelengths from a source
  2. 3. - A neutron star with an extreme magnetic field
  3. 4. - ___ matter - invisible mass making up 27% of the universe
  4. 5. - Light stretched by the expansion of the universe
  5. 8. - Matter spiralling inward toward a black hole
  6. 10. - An active galaxy with a jet pointed directly at Earth