The only planet astronauts have visited is earth.
The moon, a satellite, has also been visited.
They have never been on all
The only planet humans have ever been on is Earth.
Depends on whether you say Pluto is a planet or not. If you say it isn't, then there are no planets that haven't been visited by a spacecraft. If you say it is, then there is one that hasn't been visited yet, but one is on the way.
The answer is mars.
EarthThe moonRobots built by humans have landed on Mars, Venus, and Saturn's moon - TitanProbes have been sent to all planets in the solar system as well as several of the gas planets' giant moons, and some comets.
Jupiter mars mercury have been walked on by me coz im the best at every thing
The only planet humans have ever been on is Earth.
None They have only been to Moon of Earth
Other than visiting individual space stations, the moon is the only place that astronauts have visited.
April 2008 At present the only planet in our solar system that has not been visited (either by an orbiting spacecraft or flyby spacecraft) has been the recently planet downgraded body of Pluto. There is a mission currently in motion to visit this distant outpost.
All of the eight planets have been visited or orbited by space probes.
Depends on whether you say Pluto is a planet or not. If you say it isn't, then there are no planets that haven't been visited by a spacecraft. If you say it is, then there is one that hasn't been visited yet, but one is on the way.
All of the planets in the Solar System have been visited by machines except for the planet Pluto. There was a machine that was launched in 2004 for a flyby to Pluto in 2014.
No, not yet at least. The only object that astronauts have been to other than Earth is the moon, which is a moon rather than a planet. There other planets are much farther away, but there are some plans to land people on Mars.
At the moment, Astronauts cannot go to any planet but Earth.
There have , as of yet , been none .
The answer is mars.
At current we have sent, or are sending, probes to all of the planets in our solar system. The probe Voyager has visited several planets, including Jupiter and Neptune, while Cassini is currently in orbit around Saturn.