Do people live in space

Answer 1

1) Yes, but never more than a dozen or so at a time.

2) You may be thinking of the effects of relativity. If you were to travel through space at velocities near the speed of light, the theory of relativity suggests that you would subjectively experience the passage of time differently than everyone else, who sensibly stayed behind on Earth.

Thus, you might travel for (let's say) 50 years in your perception (in a tin can? boring!) and return to find that (let's say) 500 years had passed on earth, everyone you know is dead, you yourself are at best a nearly-forgotten legend from another age, and Morlocks (or perhaps damn dirty apes) are now running the planet.

For these reasons, it is not recommended to travel near the speed of light for any great length of time. Don't say I didn't warn you.

3) Microgravity environments are difficult and stressful for the human organism, which evolved to function in 1g environments. So far, human space vehicles and stations are poorly shielded against cosmic and solar radiation. At our present level of technology, living in space can only be seen as a stressful and risky proposition. It would be fair to say that you would "age" much faster due to the rigors of space travel than you would taking it easy at home.

If in the future space travel technologies somehow improve to the point where radiation, gravity, and other physical conditions mirror those on Earth more or less perfectly, I would assume people would age at the same rate there as here.

if you were stationary yes if you orbit the speed of light your perception of time would change but you'll still age

Answer 2

Yes, they do, depending on your precise definition of flying. If you put the best airplanes in space, both propeller and jet, [assuming air-tight construction for survival and sealed systems so engines could run] they would not be able to influence their own movement at all and would be at the mercy of their orbits or other external events/forces. Equipped with rockets designed for space travel, though, vessels can maneuver according to plan to change orbit, travel to the moon and elsewhere, and navigate a path back to a safe landing on earth.

Answer 3

The only people who spend any time living away from the surface of the Earth

are the crew of the International Space Station.