quote:
Originally posted by CardinalT-Square:
That's no longer entirely accurate. Recently, small traces of water have been found in some of the samples we've brought back.
The way science works is you come up with a theory based on known facts and they hold up true for a time.
Then new facts emerge and a new theory emerges and it eventually gets accepted by the entire scientific community as fact.
For now the theory of a collision is upheld with the United States Geological Survey while new theories and models become finalized which may probably change all that.
As an example lets take the Continental Drift theory.
Many others came up with the theory before Alfred Wegener even in the 1500's ..but Wegener was the most complete and he proposed it in 1912.
Alfred Wegener faught faught and died to no avail to prove this theory.
It wasn't until after his death into the 1960s that the theory began to gain acceptance and validation by the entire scientific community.
That took almost 400yrs to gain acceptance from a first proposal and everyone making gradual improvement on the theory..
So its a slow process until it reaches acceptance, everyone checks, validates, pokes holes until the theory is solid and is established as fact.
Then someone else proposes something new and the process is repeated again.
My Planets
=========================================
☉‘ ♊, ☽ ♈, ASC ♑, ☿ ♊, ¡÷ ♉, ¡ö ♋ , ♃ ♒, ♄ ♏, ♅ ♐, ♆ ♑