2. Molds and Lichens like space
While human beings and other animals cannot survive in outer space without oxygen and other stuff, they are not the only living organisms in Earth. As part of a research, various mold spores were sent to outer space. After staying outside of the International Space Station for over 18 months, they have returned to Earth with no scratches or bruises. While a few of them died due to being less UV resistant, most of them returned unharmed. The same can be said about Lichens which were exposed to the lethal cosmic vacuum. They showed zero signs of cell damage.