writes to tell us scientists have confirmed that the components of genetic material could have originated in a place other than Earth
. A recently published report explains how uracil
, two basic biological compounds, were found within a meteorite that landed in Australia. From Imperial College London:
"They tested the meteorite material to determine whether the molecules came from the solar system or were a result of contamination when the meteorite landed on Earth. The analysis shows that the nucleobases contain a heavy form of carbon which could only have been formed in space. Materials formed on Earth consist of a lighter variety of carbon."