Sunday, March 10, 2013

Blog #12

Comets & Life On Earth: Impacts May Have Jump-Started Biological Evolution
The Huffington Post
By: Mike Wall
There are many theories of how Earth has formed, many collisions and the most famous one would be the, Big Bang theory. The Big Bang theory is known to have been a colossal explosion and formed the Milky Way, and formed all of our planets. Here, we have a new theory of how Earth its self was formed, through the impacts of comets or meteorites. They have concluded that comets or meteorites might have "jump-started" our biological evolution on Earth. A team of chemists say that linked pairs of amino acids called dipeptides can be created in space conditions. Dipeptides was supposedly brought to Earth from either a comet or a meteorite billions of years ago. This is what just may have formed the even more complex molecules which are necessary for life as we know it, such as proteins and sugars.

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