Drone from Ground to Space and Back - Possible?

Hey everyone, I’ve been into drones for a while and have piloted a few through my freshman year in college, but I’m eager to build a drone myself. Are there examples of how to build a drone that would be able to carry itself to a very high altitude? Maybe some combination of mini thrusters and rotors could make it feasible? I’d probably start with something simpler for my first build obviously, but this intrigues me a lot. Thanks!