“A horde of microscopic critters called tardigrades were passengers aboard the Israeli spacecraft Beresheet, which crashed into the lunar surface nearly four months ago. But because tardigrates can survive in extreme environments, it’s likely these tiny astronauts are still alive. The microscopic organisms can go without water and oxygen for long periods of time in a state of suspended animation called cryptobiosis, in which their bodies dry up and their metabolisms shut down.”
https://www.businessinsider.com/tardigrades-on-moon-spacecraft-beresheet-likely-still-alive-2019-8