[Spaceships] getting into orbit without superscience?

[Fred Brackin]

Originally Posted by Stomoxys

Another drawback is that it requires an atmosphere with oxygen (or possibly some other oxidizer?).

Places with significant atmospheres in our Solar System besides Earth comes out to Venus, Titan, Jupiter, Saturn, Uranus, Neptune and maybe Io. Of those Titan leads as a possibly desirable landing site by a wide margin.

Trying to guess about hypothetical planets/moons outside your Solar System with non-oxygen atmospheres and the biggest possiblity might be a sort of super-Mars.

So needing oxygen may not be that big a limitation