According to reporting on a new study in the International Journal of Astrobiology, even the most indestructible microscopic animals in existence, tardigrades, have their limits. That limit is the dirt on Mars. Researchers at Pennsylvania State University exposed two species of tardigrade to lab-made simulations of Martian soil, aka regolith, the technical term for the […] The post Scientists Finally Found Something That Can Kill a Tardigrade appeared first on VICE .