Human have landed on the Moon, not a planet. It was NASA's Apollo missions which successfully landed humans on the Moon from 1969 to 1972. No human has landed on any other planet besides Earth's Moon.
As far as has been publicly announced, man-made spacecraft have landedon the earth, on the moon, and on Mars.
Astronauts have sent robots to explore the following planets: Mars, Venus, and the Moon. These robots, such as rovers and landers, have been used to gather data and conduct experiments to further our understanding of these celestial bodies.
Robots.
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.
There has been only one space probe which [crash] landed on Mercury, and that was Messenger.
No astronauts, but many robots have been there.
None. Neptune does not have a surface that something could land on. The only exploration of Neptune has been by the space probe Voyager 2, which flew past Neptune in 1989.
Human have landed on the Moon, not a planet. It was NASA's Apollo missions which successfully landed humans on the Moon from 1969 to 1972. No human has landed on any other planet besides Earth's Moon.
As far as has been publicly announced, man-made spacecraft have landedon the earth, on the moon, and on Mars.
Astronauts have sent robots to explore the following planets: Mars, Venus, and the Moon. These robots, such as rovers and landers, have been used to gather data and conduct experiments to further our understanding of these celestial bodies.
Robots.
none. they were all secretly robots
Human beings have only ever landed on one planet - the Earth. Humans have walked on the surface of the moon, but the moon is not considered a planet. We have also sent un-manned probes onto the surfaces of mercury, venus and mars, and we have sent orbital space craft to the other planets of our solar system.
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.
ninja robots
No space probe has ever landed on Mercury.