Even hard-to-kill tardigrades can’t always survive being shot out of a gun
That implies hardy water bears may not withstand crash-landing on a new planet
![illustration of a tardigrade](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2021/05/052621_MT_tardigrade_feat.jpg?fit=1030%2C580&ssl=1)
Tardigrades (one illustrated) can take a lot: starvation, dehydration, radiation, high heat and freezing cold. But one thing they can’t withstand is headlong collisions at nearly 1,000 meters per second.
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