On August 24, according to foreign media reports, Bill Nelson, director of NASA, admitted in an interview that the lawsuit filed by blue origin against the agency's award of the manned landing system (HLS) contract to SpaceX will further delay the time for the United States to return to the moon p> < p > < / P > < p > in April this year, NASA chose SpaceX as the sole contractor of HLS contract, which prompted blue origin to protest. NASA's efforts to promote the Artemis return to the moon program were blocked for the first time during the investigation by the U.S. Government Accountability Office (GAO). In early August, Gao rejected the protest of blue origin and determined that NASA's contract award process was reasonable and legal p> < p > however, blue origin did not give up, and the company immediately filed a lawsuit against NASA in the U.S. Federal Claims Court to urge the agency to change its decision. On August 19, NASA announced that it would voluntarily suspend the promotion of the HLS contract until November 1 in exchange for accelerating the review of the case. This is also the second time that the promotion of the plan has been forced to suspend p> < p > when asked about the impact of the blue origin lawsuit on NASA's return to the moon, Nelson said: "this will further delay the plan. Blue origin has filed a lawsuit with the Federal Claims Court, which is actually an appeal against the Gao decision. During the trial, the judge may require time-consuming and laborious evidence. Moreover, the final result will largely depend on the judge's decision. " p> < p > when asked whether the case would delay the promotion of the HLS contract awarded by NASA to SpaceX, Nelson said: "the lawyers of the U.S. Department of justice will be responsible for responding to the lawsuit, and NASA does not handle the case. But my understanding from our lawyers' conversation with the lawyers of the Ministry of justice who will deal with the lawsuit is that they should give their thoughts on the progress of the timetable in the next two weeks. So, this is not something we can control. It exists in the legal system and is currently being handled by the Ministry of justice. " p> < p > the lawsuit of blue origin is not the only challenge facing NASA's return to the moon program. Nelson has expressed his support for adding a second contractor to the HLS project, but this requires additional funds. It is uncertain whether the U.S. Congress will allocate funds. Meanwhile, the NASA inspector general's office recently released a report concluding that even if the lunar manned lander is ready in 2024, the spacesuits needed by astronauts will not be delivered until April 2025 p> < p > as to whether this means that the human return to the moon program in 2024 is no longer possible, Nelson replied: "I can't answer this question now about whether the delay in the development of space suits or the legal challenges we just experienced will lead to the delay in the return to the moon program." However, he admitted that the first launch mission of Artemis 1 could still be carried out by the end of the year and no later than January next year( Small) < / P > < p >