Anonymous

one. And one moon

Anonymous

Man has NOT landed on any planet so far. The only astronomic object , outside Earth , that man has landed on is the Moon, the Earth's natural satellite. However, various 'spaceships' have landed on MARS and an attempt was made to land on VENUS.

Anonymous

Zero.

Anonymous

Venus an Mars But also our Moon and Saturn's moon Titan. Several orbiters have been deliberately into either Jupiter or Saturn