The Pioneer 10 and 11 probes were launched to explore outer space, but in the 80s scientists discovered they were veering off-course, and we had no idea why!

In the 1970s, astronomers Carl Sagan and Frank Drake developed the first messages intentionally sent out of our solar system. But how do you describe yourself to beings who have no concept of life on Earth?

In the 1970's, no vehicle had gone beyond the asteroids between Mars and Jupiter, that is until Pioneer 10.

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 the way. It launched about a month...

Pioneer 10, the first space probe to leave the solar system, provided crucial data about Jupiter and Saturn, which led to advancements in the design of future probes. It continued to send information about the Sun and the solar wind...