Some people have been to Mars and Venus.
Because, it is pretty much impossible to house the resources and the fuel to get to another planet and back again.
No your mass would not change at all if you traveled from planet to planet. Mass is the amount of space an object takes up. Since different planets have different levels of gravity pushing down on you then your weight would change but unless for any reason you lost/gained weight or grown any taller/shorter your mass would not change traveling planet to planet.
it is much hotter then any other planet! it is closets 2 da sun then any other planet........
Saturn has more moons than any other planet
Like Al Cohen said. Humans haven't been on any planet other than earth, however probes have been to all the planets. There's is even one headed for the now dwarf planet, Pluto, and will arrive in 2015. We have also landed on all but 4 planets (Mercury, Saturn, Uranus, and Neptune) We've landed probes on Venus, on Jupiter (technically we haven't landed since there is no land but more like floated down till the heat and pressure destroyed craft), and also Mars (which has record for most visits), we've even landed on Saturn's moon, Titan (which technically isn't a planet but it is more similar to planet, specifically Earth, than any moon since it has an atmosphere, weather, and even oceans and lakes of liquids but instead of water, it's liquid methane).
Farther than the Moon, but still much closer to Earth than to any other planet.Farther than the Moon, but still much closer to Earth than to any other planet.Farther than the Moon, but still much closer to Earth than to any other planet.Farther than the Moon, but still much closer to Earth than to any other planet.
Venus because they both have no moons
There isnt an exactly existance on any other planet than Earth
No
No person has ever been anywhere near any other planet besides Earth. 25 or 30 people have been as far away as the moon. But that's only about 1% of the nearest distance that any other planet can ever be.
Venus rotates on its axis slower than any other planet.
It is the same as any other planet but just smaller.