Stations and/or ships that rotated to generate (false) gravity.
The sci-fi artists got it right.
Technically they do not live longer and in other ways they do. If an Astronaut spends enough time in space then time to them will flow slower than it would on earth. When astronauts spend time on the ISS they come back younger as time for them has gone by slower. Yes this is a hard concept to explain
It would be hard but astronauts would of been trained to do that so they can
Sending astronauts allows for hands-on exploration, sample collection, and real-time decision-making, but it is more costly and carries higher risks. Telescopes and space probes offer a safer and more cost-effective way to study the solar system, with the ability to gather large amounts of data over longer periods of time. Each method complements the other, with astronauts providing a human perspective and probes enabling extensive coverage.
there sweat starts to float in the space shuttle because once the astronauts are exercising in space they would start to sweat
No because then the frdger would float in space there no gravity
Entering space may cause motion sickness and/or nausea. For obvious reasons it would not help astronauts if they got sick in space or when entering space
Astronauts are chosen by the various space agencies around the world. Examples include NASA in America, or the China National Space Administration or the European Space Agency or Japan Aerospace Exploration Agency and many others. Within these agencies there would be people in charge of astronauts which would include things like recruiting astronauts and training them.
by using a space capsule
Their bodies would become very weak.
of course , but it would not be the same weight as on earth
Depends on the gravity they were raised in. It would, at first, depend on the gravity they were living in while traveling here. Our astronauts are badly effected by gravity when they return from space. The longer they were in space the worse the effect. In space they exhibit bone calcium loss. Our bodies would probably adapt well to space if we lived there, but the changes would probably upset some people.
A shot in to space but- Maybe they have a 3 dimensional map with the coordinates of the planets and they're moons already in the system. i think it would look like a 3D Nautical Star.