Humans have not technically visited any planet. We have sent landing craft to Mars and Venus though. Those missions were in exploration of possible future human habitats, but neither planet is suited for human survival.
The answer is mars.
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 only planet astronauts have visited is earth. The moon, a satellite, has also been visited.
The only planet humans have ever been on is Earth.
No human has really visited any planet other than Earth; the Moon isn't a planet. However, spacecraft have visited other planets, such as the Spirit and Opportunity rovers, who went to Mars
In episode II, two planets visited are Kamino and Tattooine.
No spacecraft has visited all the planets.
Earth.
The answer is mars.
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 eight planets have been visited or orbited by space probes.
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.
PLUTO
The only planet astronauts have visited is earth. The moon, a satellite, has also been visited.
no, they haven't the only place in the solar system which actual humans have visited is the earth's moon. The other planets and moons have been visited by probes.
The only planet humans have ever been on is Earth.
The Dawn space probe will begin orbiting Ceres in February 2015. The New Horizons probe will do a flyby of Pluto in June 2015. No other dwarf planets will be visited that year.