Venus, the Earth Future?

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Across
  1. 2. Something that covers from view
  2. 6. To enclose or cover something by an item
  3. 7. A device that allows to obtain information
  4. 8. Lasting unchanged for a long time
  5. 11. To gather or acquire something in quantity
  6. 14. Something that resembles another feature
  7. 15. The structure of how things are made or put together
  8. 16. Part of the electromagnetic wave that the human eye cannot see
Down
  1. 1. Human beings as a group
  2. 3. To tell the outcome of the future
  3. 4. Show great value of an act
  4. 5. Stuck an unable to escape
  5. 7. The ability to spread
  6. 9. To support a necessity of life
  7. 10. Well known for previous encounters
  8. 12. To cover something
  9. 13. To great degree of amazement