As its name implies, Hayabusa 2 is not the first of its kind. The original Hayabusa launched in 2003 and traveled 180 million miles to asteroid 25143 Itokawa. Unfortunately, the entire mission was plagued with difficulties. Along the way, a solar flare damaged its propulsion system, and two reaction wheels (which help to steer the craft) failed. Then, upon reaching the asteroid in 2005, the lander, Minerva, failed to deploy on time and drifted off into space. So JAXA had to land Hayabusa itself on the surface instead. But to add to the growing number of problems, its sampling system failed, as well as parts of its control systems. After having to unexpectedly hibernate in space for a while, Hayabusa finally limped its way back to Earth, arriving in 2010. Despite all the odds, it even managed to bring back about 1,500 grains of dust from the asteroid.