Space, Time And Galaxy

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Across
  1. 3. - it is the biggest star known to mankind
  2. 6. - a region of spacetime where gravity is so strong that nothing
  3. 8. - the planet is full of gas :)))
  4. 9. - the planet is also known as the red planet
  5. 11. - the natural agent that stimulates sight and makes things visible.
  6. 12. - it a planet full of oxygen life and water
Down
  1. 1. - a powerful and luminous stellar explosion
  2. 2. - it is also known as a zodiacal cloud
  3. 4. - it only comes out at night
  4. 5. -a luminous giant star of low or intermediate mass in a late phase of stellar evolution.
  5. 7. - a luminous ball of gas, mostly hydrogen and helium, held together by its own gravity
  6. 10. - the indefinite continued progress of existence and events in the past, present, and future regarded as a whole.