They said in the science fiction movie Star Trek that we are units of carbon. But is it possible that there is another chemical element capable of substituting it? What is the framework of the molecules of life?
Scientists have found the 'building blocks of life' in three meteorites that fell to Earth in 1950, 1969 and 2000. They all contained compounds that have been previously detected but also cytosine and thymine, the building blocks of life. This discovery adds to the evidence suggesting that the precursors of life came from space.