The amino acids in the Martinsson meteorite have been proven to be of cosmic origin.
The meteorite contains protein-forming amino acids such as glycine, alanine, valine, proline and glutamic acid.
Are the materials for nucleic acids found in meteorites?
It is now thought that nucleic acid bases almost certainly exist in meteor.
Several sugars containing ribose have also been detected in the Tunguska meteorite.
Where did the organic materials that form the building blocks of amino acids and nucleic acids in meteorites come from? It came from ‘meteorite parent body’.
The term ‘meteorite parent body’ is used to refer to the place where the materials in meteorites were formed.
It has also been discovered that comets brought water and organic matter to Earth.
In 2006, the Stardust probe, which returned to Earth, brought back various organic materials from the dust blown off comets. These included the amino acid glycine.
Cosmic dust is also thought to be a carrier of organic matter from space to Earth.
It is thought that meteorites and comets brought organic matter containing amino acids to Earth, and that this may have become the raw material for life on Earth.

Astrobiologists are working to obtain information from space about origins of life, such as water and organic matter!

The celestial bodies in the solar system that may be inhabited by microorganisms or other forms of life are thought to be Mars, Europa, Enceladus and Titan.
Astrobiologists are working hard to find life in space.
Their future discoveries will reveal where we, as humans, stand in the universe.

Research fellow Ryoko Oi

Researchers at G&L Kyosei Institute are doing our best to find out how these materials from space were involved in the origin of life on The Earth!

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Reference: Kobayashi K(2024) 生命と非生命のあいだ 地球で「奇跡」は起きたのか. 株式会社講談社