今年2月,詹姆斯·韦伯空间望远镜(JWST)项目通过关键设计定型评审,进入组装和测试阶段,从而为其2018年的发射作准备。詹姆斯·韦伯望远镜由美国航宇局、欧洲空间局和加拿大航天局联合制造,原计划在2010年左右发射。2011年,由于预算从20亿美元膨胀到87亿美元,以及发射滞后,国会威胁要取消该项目。美国航宇局不得不重新制定计划,此后,该项目一直在预算内严格按期进行,但它每年的预算仍占据美国航宇局天体物理学每年资 In February this year, the James Web Space Telescope (JWST) project passed the critical design review and went into the assembly and testing phase in preparation for its 2018 launch. The James Webb telescope was jointly manufactured by the NASA, the European Space Agency and the Canadian Space Agency and was originally scheduled to be launched around 2010. In 2011, Congress was threatening to cancel the project as its budget ballooned from 2 billion U.S. dollars to 8.7 billion U.S. dollars and lagged behind. NASA had to re-plan, since then, the project has been strictly on schedule within the budget, but its annual budget still occupies the annual NASA astrophysics