Re: How Fast Do Rogue Planets Move?
I'd be careful about using the word impossible when it comes to life. We've used it many times only to find our assumptions were incorrect. While life as we know it might not survive in such conditions, some might survive. Case in point, we've found bacteria frozen in ice for 25,000 years that came back to functioning life as soon as it was warmed up.
No, it doesn't defy physics. It just defies our current level of technology.