欧洲空间科学20年计划的第一步工作已着手进行,欧洲的科学家们将同美国的航空与航天局甚至也同苏联进行合作。但由于英国单方面决定不增加对欧空局(ESA)的这一计划的投资,这就使得空间科学的下步进展前途未卜.这一被称为“2000年远景”的计划建立于四个“基石”项目:日地物理学,X 射线光谱 The first step in the 20-year European space science program is already under way, and European scientists will work with NASA in the United States and even with the Soviet Union. However, with Britain's unilateral decision not to increase its investment in ESA's program, the next step in space science's future is uncertain, and the so-called “Vision 2000” is based on four “Cornerstone” project: Japanese geophysics, X-ray spectroscopy