Bacteria found in asteroid sample – but they’re not from space

The unexpected discovery of microbial life in a piece of rock from an asteroid shows how hard it is to avoid contaminating samples brought back to Earth

​The unexpected discovery of microbial life in a piece of rock from an asteroid shows how hard it is to avoid contaminating samples brought back to Earth The unexpected discovery of microbial life in a piece of rock from an asteroid shows how hard it is to avoid contaminating samples brought back to Earth