Astronauts in their spacecraft (such as the Space Shuttle) are lifted into space by huge rockets which accelerate the craft to "escape velocity" (about 25,000 mph). This puts the craft into orbit around the Earth, its forward velocity balancing the continuous pull of gravity. When they are ready to return to Earth, they use rockets to slow down, and gravity pulls them back out of orbit.
When astronauts travelled to the Moon, another smaller rocket pushed the Apollo spacecraft out of orbit, and carried it to the gravitational field of the Moon. Another rocket firing pushed the craft back to Earth.
Unmanned space probes have travelled to even farther distances from Earth, including the outer planets Uranus and Neptune. Most of the travel is coasting, because there is practically no matter in space to slow a spacecraft down.
the things that astronauts do on a mission is sleep learning how to fly a space shuttle
A rocket.
because of unavailability of gravity.
Astronaut did not land in Venus because the planet is hot. If the astronaut land on Venus, they will burn their selfs.
Shuttles have only been designed to be in low earth orbit and do not have the capability to go to the moon. The Apollo missions were the ones that traveled to the moon, and there have been no lunar missions since 1973.
Astronauts are people who fly in space
Yes, astronauts can fly out here and there as they live in zero gravity in space.
the things that astronauts do on a mission is sleep learning how to fly a space shuttle
Three astronauts
A rocket.
No
because of unavailability of gravity.
Astronauts fly the craft and participate in experiments. They provide what is commonly called "human intelligence" regarding the outcome of these experiments.
they are not actually flying they r in continous free fall
The one planted on the Moon by the Apollo astronauts.
Indeed they can. Astronauts complete an orbit in about 90 minutes.
The three astronauts to fly to the moon were Neil Armstrong, Edwin Aldrin and Michael Collins.