1988年5月29日～6月2日里根总统访苏期间和戈尔巴乔夫签订了美苏间有限范围的空间合作新协定。在6月4日发布的联合公报中提及了中等程度的各项科学合作计划,但是美苏合作限制在单一的“太阳系研究计划的交流”上,美国拒绝苏联提出火星载人或不载人共同飞行的建议。新空间合作协定局限在卫星上的科学仪器交换和科学家的交流。据 May 29, 1988 to June 2, President Reagan visited the Soviet Union and Gorbachev signed a new space agreement for a limited space between the United States and the Soviet Union. Mentioned in the joint communique on June 4 were medium-sized scientific cooperation plans, but the cooperation between the United States and the Soviet Union restricted the single “exchange of solar system research plans” and the United States rejected the Soviet proposal of manned or unmanned Mars Joint flight advice. The new space cooperation agreement limits the exchange of scientific instruments and exchanges of scientists on satellites. according to