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Meteorites: The source of life on earth
Geophysical Lab of Carnegie Institute in Washington recently conducted a research to find the source of first life on earth. Based on the study, researchers claim that meteorites were the possible source.

QUESTIONS ABOUT creation of the first life on earth have been haunting researchers for quite some time now. But thanks to a recent research carried out by Geophysical Lab of Carnegie Institute in Washington, these questions seem to have been finally answered. The study showed that meteorites were the possible source of first life on earth.


Jim Cleaves of Carnegie Institute explained that initially, research led to the conclusion that nucleobases, the genetic building blocks, was not found on earth, thus hinting at an extraterrestrial theory. Now the next step was to figure out where nucleobases and carbonaceous chondrites (organic rich nucleobases) came from.

Soon a report appeared in the journal Proceedings of the National Academy of Sciences, which claimed that amino acids, which join together to form proteins, existed in space and travelled to earth with the help of carbonaceous chondrites.

The Geophysical Lab research team examined samples of carbonaceous chondrites and ureilite, a rare meteorite, using superior spectroscopy technology. The research showed that sources that created first life on earth reached the third planet of the solar system via meteorites.

The study showed that meteorites may have been molecular tool kits, which provided the essential building blocks for life on Earth, Cleaves said.


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