If dust accreted around an icy core and, following gravitational capture by Mars, tidal forces caused the ice to sublime, one would be left with a hollow body. Occams razor and all that
I agree, accretions around an ice core. A comet surrounded by captured rock that is then itself captured by Mars.
Asteroids are not equal.
Spoil sport! I personally prefer the “Death Star covered with interstellar dust” answer.
You sayin that someone/something named Occam used his razor to shave the ice into some really sublime shapes, or something like that?
Sounds good to me.
It’s the simplest answer I’ve heard yet.
mining is the least complex theory ~ its in line with signs of Earth, Venus and Mercury having been mined before half a billion years ago ~