Did water come from comets?
Question asked by: knowitall
One interesting theory is that most of the water came to earth from comets.
The idea is that loads of small comets, about the size of small houses, come into the atmosphere every day.
They vapourise in the atmosphere, leaving their water behind.
The idea is that 10 of these very minute for billions of years over the course of the history of the planet would lead to virtually all the water in the oceans and atmosphere!
This would be significant as it would give an alternative explanation for the standard idea that the water came from gaseous emissions from the crust of the Earth in the early days post its initial formation...
By: Unknown
Average rating for this answer is 4 / 5
Rate Answer
Comment or provide your answer to this question
No comments have been added to this question "Did water come from comets?".
No comments have been added to this question "Did water come from comets?".
Ask a New Question
Find out more about Astronomy
Find out more about Astronomy
Astronomy Questions and Answers
comets Questions and Answers
Next question: What is the photosphere of the sun?
Become a Member! It's Free >>>
Share on Facebook: 
On Twitter:
Tweet this!
Question Keywords
comets
More Questions:What Is The Surface Of Mars Like?
How Many Stars Are There In The Whole Universe?
Is Belief In Aliens A Matter Of Faith?
What Features Does Neptune Have?
What Is The Surface Of Neptune Like?