Unusual Space Phenomena

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Across
  1. 1. – Radiation left over from the Big Bang
  2. 4. – Neutron stars with extremely strong magnetic fields
  3. 7. – Hypothetical form of matter not directly observable
  4. 9. – Comets that originate from outside the solar system
  5. 10. – Extremely bright and distant objects powered by black holes
Down
  1. 2. – Intense bursts of gamma radiation from space
  2. 3. – Planets not bound to any star
  3. 5. – Dense remnants of supernova explosions
  4. 6. – Regions of spacetime with gravitational pull so strong that not even light can escape
  5. 8. – Highly magnetized, rotating neutron stars