美航天局：SpaceX研发月球着陆器进度滞后 拟重新开放竞标

Core Points - NASA plans to reopen the contract for the "Artemis 3" crewed lunar lander due to delays in SpaceX's development progress, allowing other U.S. companies to participate in the bidding process [1][2] - The "crewed landing system" is a critical component of the "Artemis 3" mission, responsible for transporting astronauts between lunar orbit and the lunar surface [1] - SpaceX was awarded a contract worth approximately $2.9 billion in April 2021 to develop and manufacture the lunar lander [1] Group 1 - NASA Administrator Sean Duffy announced the decision to open the contract to other companies, emphasizing that competition and innovation are key to maintaining U.S. leadership in space [1] - SpaceX founder Elon Musk responded that the company is progressing rapidly compared to other U.S. space industry players and that their next-generation heavy-lift rocket, Starship, will ultimately complete the entire lunar mission [2] - Other U.S. companies involved in various aspects of the "Artemis" program include Blue Origin, Boeing, and Lockheed Martin [2] Group 2 - The "Artemis" lunar program was announced by the U.S. in 2019, with the "Artemis 1" unmanned lunar flyby test mission executed in November 2022 [2] - NASA has postponed the timelines for the "Artemis 2" crewed lunar flyby and "Artemis 3" crewed lunar landing missions to April 2026 and mid-2027, respectively [2]