A group of tardigrades crashed into the moon in April. The indestructible critters could still be alive.

August 15, 2019

The moon just got a little more crowded. 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.