Having recently finished 'Project Hail Mary,' I am of course inclined to see this as evidence for the panspermia hypothesis! If our very distant ancestors evol

Having recently finished 'Project Hail Mary,' I am of course inclined to see this as evidence for the panspermia hypothesis! If our very distant ancestors evolved to hitch a ride on a comet, they'd probably need a mechanism for slowing or suspending aging while they traveled in zero-g. We also know that nematodes can be revived after a very long period of hibernation [0]. This doesn't quite fit in with our current story of evolution, but then, I personally have no idea what the weakest empirical links in that story are. [0] https://nypost.com/2018/07/30/scientists-just-brought-40000-year-old-worms-back-to-life/ https://nypost.com/2018/07/30/scientists-just-brought-40000-...