At the time when earth was born it had to suffer many collisions from the particles, existing then in the solar system. When earth was born, Sun's outer shell was big enough to influence Mercury, Venus, Earth and Mars so the existence of water from the very beginning was ruled out. So then whats the origin of water, is it the Comets? Let's see...
Initial observations from the scientists in NASA was also in the same direction and they did research on this, even bombarded* Hale-Bopp, a comet, with a copper mass but things did not go well because the water present in Comets was usually the isotope of water present on our mother Earth. The isotope found in the Comet was Deuterium. So we were back to square one, where did water come from?
Jupiter, the largest planet of our solar system, played a role in bringing water on earth. In the inital period of planet formation the asteriod belt was not stable enough to remain intact in their orbit and master Jupiter had plans to fight for some asteroids. Jupiter attracted many asteroids into its gravitational field and did succeed to pull out many asteroids but for many others it just managed to change there circular (not exactly) trajectories into the elliptical.
These elliptical orbits of asteroids conincided with earth's orbit and poor asteroids were pulled by Earth. The asteroid belt contains rocks which have good amount of water trapped inside along with clay. When these asteroids travelled into earths atmosphere they bombarded earth's crate, our natural satellite Moon still has scars on it's face which could be called birth marks. This process continued for 100 million years and they gave birth to our seas and oceans. All this happened just in just few hundred million years.
No comments:
Post a Comment