age and history or earth

Edit Answers
12345678910111213141516
Across
  1. 3. Also known as the Planck Epoch
  2. 5. age of dinosaurs
  3. 8. the primordial dust began to coalesce into a disk-shaped configuration as it moved at a high pace
  4. 10. The ejected matter was in the shape of a cigar and was called Filament from which the planets & other celestial bodies
  5. 11. a German philosopher and one of the central Enlightenment thinkers
  6. 12. a powerful and luminous explosion of a star
  7. 13. age of fishes
  8. 15. planets originate in a dense disk formed from material in the gas and dust cloud that collapses to give us the Sun
  9. 16. a physical theory that describes how the universe expanded from an initial state of high density and temperature
Down
  1. 1. age of man
  2. 2. the Universe began to become gravitationally attracted to each other.
  3. 4. was first proposed by Johannes Kepler in the 17th century
  4. 6. Most cosmological models suggest that the Universe at this point was filled homogeneously with a high-energy density
  5. 7. explains the process in which a massive sized disk cools down rapidly
  6. 9. age of plants
  7. 14. As the universe continued to decrease in density and temperature, the energy of each particle began to decrease