Use wechat to scan the QR code < / P > < p > to share with friends and circle of friends < / P > < p > surging journalist Zhang Jing < / P > < p > at 5:49 EDT on April 23, < a target = "_ blank" href=" https://news.163.com/news/search?keyword=SpaceX "> SpaceX < / a > manned < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E9%BE%99%E9%A3%9E%E8%88%B9 "> Dragon spaceship < / a > launched from Kennedy Space Center in Florida on Falcon 9 rocket to carry out commercial manned space mission crew-2, sending four < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E5%AE%87%E8%88%AA%E5%91%98 "> astronaut < / a > to < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E5%9B%BD%E9%99%85%E7%A9%BA%E9%97%B4%E7%AB%99 "> International Space Station < / a >, a six-month mission. The spacecraft is scheduled to dock with the space station at 5:10 on April 24 < p > Shane jinbro is the commander of this mission, responsible for all flight phases from launch to reentry. In 2004, Shane jinbro was selected as a NASA astronaut. In 2008, he carried out his first space station mission on the space shuttle Endeavor, and in 2016, he carried out his first long-term mission on the Russian Soyuz spacecraft. He spent 189 days in space and completed six spacewalks < p > Megan MacArthur is the pilot of the Dragon spacecraft and the deputy commander of this mission, responsible for the spacecraft system and performance. MacArthur was selected as an astronaut in 2000 and launched on the space shuttle Atlantis in 2009 to participate in the maintenance of the Hubble Space Telescope. She spent 12 days and 21 hours in space, operating the mechanical arm of the space shuttle, capturing telescope, etc. The crew-2 mission will be MacArthur's first trip to the international space station, where he will work for a long time As crew-2 mission expert, he will work closely with the commander and pilot to monitor the flight of the spacecraft during the launch and reentry phases. He joined Japan's National Space Development Agency (now JAXA) in 1992 and was elected as an astronaut candidate in February 1999. Xingchu Zhangyan had two space flight experiences. He went to the international space station in June 2008 and spent 124 days in 2012 < p > Thomas pesquet is also crew-2's mission expert. In May 2009, he was selected as an astronaut candidate by the European Space Agency, and served as a communication worker with astronauts from mission control center during astronauts' space flight. Thomas pesquet spent 196 days in space, completing two space flights, one is to replace the battery of the electronic channel, the other is to repair the cooling leakage and repair the mechanical arm < p > the four astronauts will carry out scientific research on medical technology, human health and materials in the space station. They will test portable ultrasound equipment, carry out tissue engineering research on bone, cardiovascular, muscle and liver health, and study the growth of cotton under microgravity to identify better cotton varieties < p > the Dragon spacecraft and crew-2 astronauts left the space station as early as October 31 to return to earth and splash down the Atlantic Ocean. Four days after the crew-2 mission's Dragon spacecraft docked with the space station, the Dragon spacecraft launched to the space station last November will return to earth < p > < b > Figure 1: at NASA's Kennedy Space Center in Florida, SpaceX Falcon 9 rocket and manned dragon boat were installed on Launch Pad 39A to prepare for the second commercial manned mission European Space Agency cosmonaut Thomas pesquet and Japanese cosmonaut Masahiko xingchu < / b > < / P > < p > <-- StartFragment-->