Turns out Hayabusa2's next asteroid target isn't much bigger than the probe itself

Japan's Hayabusa2 probe faces a tougher mission as its target asteroid, 1998 KY26, is now measured at only 11 meters wide—smaller than initially thought—and rotates once every five minutes. Set to reach the asteroid in 2031, this mission will be the first encounter with such a small celestial body, offering insights for planetary defense by demonstrating the ability to characterize tiny near-Earth objects using telescopes.