What red planet have humans put robots on?

What is the Longest anyone has been on the space station? When the earth goes around the sun does the moon go with the earth? Does the moon have canyons? What is the answers to The brightest sky? What is an irregularly shaped rocky mass that is smaller than a planet and occupies an orbit around the sun and are most found between the orbits of Mars and Jupiter? Does cj dipper have a girlfriend? What are good items to put into a time capsule? If an asteroid is in an elliptical orbit about the Sun with the Sun almost at the center of the ellipse what would the eccentricity of the ellipse be? What force causes the most obvious effect on the earth's tides? The sun earth aphelion occurs when? How the computer influenced the first landing on the moon? What are the minor gases on Neptune? What is the season to see Cassiopeia? How are cirrostratus clouds a good example of refraction? What is a planet orbiting another planet called? Does Mars have oxygen in its atmosphere? How does the size of Mercury compare to Earth? Who was the first American to land on the moon? Does the surface of moon and earth both have craters? Who are the most 10 famoust scientist?