To start with, how do you get around in space? Not on a bicycle! Bikes don't work in 0g, although why you'd be bothering attempting to bike in 0g is probably as good of a question. Still, SCIENCE.
How do you go to space through really, really long trips? According to lots of science fiction, you use suspended animation/stasis/hypersleep/etc to nap away the lightyears. Suspended animation is currently being tested for a purpose closer to home, patching up people who are leaking.
I thought I had more tabs of tech things open. It appears I was mistaken. Phoning it in, ho!