pioneer venus 1&2
Pioneer Venus 1&2 acomplisments
during a 14 year obit of Venus, pio Venus 1 used a radar to map the surface at a resolution of 75 Km. It found that the planet to be generally is smoother than Earth
1629-1695 he is a dutch inventor.
Accomplishments: He discovered Titan,Saturn's largest moon.
He developed the earliest theory of light.