Add Yahoo as a preferred source to see more of our stories on Google. On April 5, 1973, NASA launched the Pioneer 11 mission into the outer solar system.Pioneer 11 would become the first spacecraft to ...

Add Yahoo as a preferred source to see more of our stories on Google. On Sept. 1, 1979, NASA's robotic space probe Pioneer 11 became the first spacecraft to fly by Saturn. Pioneer 11 launched in 1973 ...

On February 23, 1990, NASA's Pioneer 11 spacecraft left the solar system! This was the second spacecraft to travel beyond the planetary part of our solar system, which ends at Neptune's orbit. An ...

For over 30 years, the Pioneer 10 spacecraft sent photographs and scientific information back to Earth. Launched March 2, 1972, it reached speeds of 52,100 kilometers (32,400 miles) per hour on its ...

On April 5, 1973, NASA launched the Pioneer 11 mission into the outer solar system. Pioneer 11 would become the first spacecraft to fly by Saturn, and it flew by Jupiter and the asteroid belt along ...