Narrator wrote:
I saw a doco on this about a year ago. They reckon aliens wouldn't send their people, because it would be too costly a payload, especially catering to fragile bodies in space. If aliens came, they would send drones to recover resources, water being the most useful of all. Drones wouldn't need habitable space, waste recycling, sustainable food supply, medical, cryonics etc. The payload would be much lower mass, maybe almost skeletal.
So do you think if some alien species had been in space for thousands, maybe millions of years, existing like we do here on earth only in space, their bodies would resemble skeletons?