What challenges did Hayabusa2 face during its landings on asteroid Ryugu, and what did it accomplish?

The Hayabusa2 mission encountered greater landing difficulties than anticipated due to Ryugu's extremely rocky surface. Despite these challenges, the spacecraft successfully completed two separate sample collection operations: the first gathering material from the asteroid's surface, and the second collecting underground samples, with each stored in separate compartments. Following initial examinations by JAXA (Japan Aerospace Exploration Agency), these valuable samples will undergo comprehensive analysis in Japan before being shared with NASA and other international research groups. This collaborative approach will maximize scientific insights from these rare extraterrestrial materials, potentially providing crucial information about the early solar system.