Also note how easily they just happen to encounter a meteor, just one day out from Mars. Despite the vastness of space, wandering encounters can come just as frequently in space as they would anywhere else (I would roll once per rest turn,1 in 6 chance).
It's a little odd that the Martians use dollars as currency, but maybe our narrator is just translating their term for us.
Make no mistake; our "hero" Jane is robbing the ship of its gold. She wrecks her way into the vault to take it.
Infantile paralysis, of course, refers to polio. It's useful for dating this adventure that polio is still around, since it was wiped out in the U.S. by vaccines from 1955-1979.
Surprisingly, this is the first weasel we see in comics. Against normal sized foes, a weasel isn't going to be anymore of a threat than an owl, though giant-sized versions of each are tempting.
The king probably rules by virtue of being the only person who can sit comfortably in a throne with upright seashells for armrests. There are multiple wings to the palace, including this one where the king's advisers have their private rooms.
(Scans courtesy of Digital Comic Museum)