A black particle collected during the space probe Hayabusa2's first landing on the asteroid Ryugu, which is now on public display at the National Museum of Emerging Science and Innovation in Tokyo's Koto Ward, is seen in this photo provided by the museum.... 4 for the first time at a Tokyo museum.... Masaki Fujimoto, deputy director of the Japan Aerospace Exploration Agency( JAXA)'s Institute of Space and Astronautical Science, told reporters during a briefing session held for the media on Dec