Hayabusa2's new target, asteroid 1998 KY26, is just 36 feet (11 meters) across, which will make landing on it challenging.

Japan's Hayabusa2 is heading to the smallest asteroid ever visited by a space mission

Source: space
Source Link: https://www.space.com/astronomy/asteroids/japans-hayabusa2-is-heading-to-the-smallest-asteroid-ever-visited-by-a-space-mission