http://www.cnn.com/2016/04/07/us/ma...40716mars-life0840PMStoryLink&linkId=23208987
It could be another tantalizing clue in the search for life beyond Earth. Picture this: It's some 4 billion years ago.
Earth, and Mars, which formed around the same time in the solar system, have been in existence for roughly 500 million years.
Mars is pummeled by gigantic comets and asteroids hundreds of kilometers wide -- some as big as West Virginia or Latvia.
Where could these gigantic comets and asteroids have come from? Comets and asteroids the size of WVa and Latvia could only come from larger planets that collided together. Perhaps the asteroids are what eventually created the rings around Saturn seeing how young the rings around Saturn are.
It could be another tantalizing clue in the search for life beyond Earth. Picture this: It's some 4 billion years ago.
Earth, and Mars, which formed around the same time in the solar system, have been in existence for roughly 500 million years.
Mars is pummeled by gigantic comets and asteroids hundreds of kilometers wide -- some as big as West Virginia or Latvia.
Where could these gigantic comets and asteroids have come from? Comets and asteroids the size of WVa and Latvia could only come from larger planets that collided together. Perhaps the asteroids are what eventually created the rings around Saturn seeing how young the rings around Saturn are.
