What is Pioneer 10?
Pioneer 10 is an unmanned space probe, the first ever to cross the asteroid belt and study Jupiter and its moons. Launched on 2 March 1972, Pioneer 10 is also the first probe to reach the solar system’s escape velocity. It is currently heading in the direction of the orange giant star Aldebaran, which is the “eye” of the bull that makes up constellation Taurus, located about 65 light years away. If our system and the Aldebaran system had zero velocity relative to each other, Pioneer 10 would reach it in about two million years. Pioneer 10 took the first high-resolution, close-up images of Jupiter. Passing through the asteroid belt was not hard — although it is sometimes portrayed as being dense with asteroids, they are in fact very spread out. True to its name, Pioneer 10, and its sister craft, Pioneer 12, were the first true pioneers of outer solar system exploration. Some of the scientific assignments given to Pioneer 10 were the study of interplanetary and planetary magnetic fields;
