Also, yes. Earth has been substantially warmer in the past. Earth's atmosphere also had higher oxygen levels in the past[1], but it would be very bad for most life on earth if we suddenly returned to those conditions[2].
I read somewhere that this might be a spent first stage, and the real spacecraft is currently decelerating as it approaches our solar system. That would explain the shape, tumbling, and trajectory, but then again "weird space rock" explains those things more plausibly.
vim all day