A tardigrade must first complete cryptobiosis, otherwise they are fragile[1]. Given that it takes time to enter cryptobiosis (maybe 1 hour), it is unlikely that

A tardigrade must first complete cryptobiosis, otherwise they are fragile[1]. Given that it takes time to enter cryptobiosis (maybe 1 hour), it is unlikely that any active tardigrade would survive a meteor impact. Suppose a tardigrade was in complete cryptobiosis and survived a journey to the surface of Mars. Conditions would need to be favorable if it were to ever regain an active metabolic state. [1]https://www.quora.com/What-does-it-take-to-kill-a-waterbear-tardigrade https://www.quora.com/What-does-it-take-to-kill-a-waterbear-...