Main Features Of Our Universe.

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Across
  1. 3. - a long distance or great amount is know as a _____ year.
  2. 6. - it is the biggest planet in our solar system
  3. 7. - it is also known as a zodiacal cloud
  4. 9. - a highly magnetized rotating compact star that emits beams of electromagnetic radiation out of its magnetic poles.
  5. 11. - it is the biggest star known to mankind
  6. 13. - a region of spacetime where gravity is so strong that nothing
  7. 15. - it's a force that attracts a body toward the centre of the earth.
  8. 17. - theirs only one (hint: it's in the title)
  9. 19. - the indefinite continued progress of existence and events in the past, present, and future regarded as a whole.
  10. 21. - a powerful and luminous stellar explosion
Down
  1. 1. -a luminous giant star of low or intermediate mass in a late phase of stellar evolution.
  2. 2. - the planet is also known as the red planet
  3. 4. - a luminous ball of gas, mostly hydrogen and helium, held together by its own gravity
  4. 5. - the collection of eight planets is called?
  5. 8. - a system of millions or billions of stars, together with gas and dust.
  6. 10. - the planet is full of gas
  7. 12. - the greek god of water (also known as Poseidon)
  8. 14. - the natural agent that stimulates sight and makes things visible.
  9. 16. - its a planet with a ring around it
  10. 18. - it a planet full of oxygen life and water
  11. 20. - it only comes out at night