There are many planets in our solar system that have not been visited by a spacecraft. As of now, the planet Uranus has not been visited by any spacecraft.
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.
Pluto has yet to be visited by a spacecraft because it is so far away.
The Russians have never landed on the moon
Their has been several... Most of them named Apollo #. The Soviet Union had its unmanned Luna program, which was first in 1959. The US also had the unmanned Surveyor program.
it is too hot at the sun
No its way to hot to even go close to the sun.
No spacecraft has visited all the planets.
Pluto will be visited by the spacecraft New Horizon in 2015
voyager 2
Voyager 2 is the only spacecraft to have currently visited both.
Yes
yes
There are many planets in our solar system that have not been visited by a spacecraft. As of now, the planet Uranus has not been visited by any spacecraft.
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.
none
Apollo 17