Even as detailed images of distant galaxies from the James Webb Space Telescope show us more of the greater universe, scientists still disagree about how life began here on Earth. One hypothesis is that meteorites delivered amino acids — life’s building blocks — to our planet. Now, researchers repor
Scientists are uncertain about the origins of life on Earth, but one hypothesis is that meteorites brought amino acids, the building blocks of life, to the planet. Researchers have found that amino acids could have formed in early meteorites due to reactions within the space rocks caused by gamma rays.show us more of the greater universe, scientists still disagree about how life began here on Earth.
Ever since Earth was a newly formed, sterile planet, meteorites have been hurtling through the atmosphere at high speeds toward its surface. If the initial space debris had included carbonaceous chondrites — a class of meteorite whose members contain significant amounts of water and small molecules, such as amino acids — then it could have contributed to the evolution of life on Earth. However, the source of amino acids in meteorites has been hard to pinpoint.
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