No.
But maybe there's a planet that we havent discovered yet
Yes. All humans live on Earth.
Mars is the planet besides Earth that has water.
It is the only planet with the recourses necessary for us to survive.
Mars
mars
No, he traveled to the Moon, which is not classified as a planet. Though technically, the Earth and Moon could be classified as a double planet.
No, no human has ever set foot on Neptune or any other planet in our solar system besides Earth. Neptune is a gas giant with extreme conditions, making it impossible for humans to survive there.
Humans can potentially survive on planets within our solar system, such as Mars and possibly Venus with the right technology. However, currently, Earth is the only known planet where humans can naturally survive due to its atmosphere, temperature, and resources.
Mars is the other planet in our solar system besides Earth that has water.
Terraforming is transforming a planet into one that is similar to Earth (so that an ecosystem in which humans can survive will sustain itself).
The first planet discovered besides Earth is Uranus. It was discovered by William Herschel in 1781.
The planet is worse off with humans.