保护地球，探索宇宙，发现文明
On Dec. 24, 1968, Apollo 8 astronauts Frank Borman, Jim Lovell, and Bill Anders became the first humans to orbit the Moon, and the first to witness the magnificent sight called “Earthrise.” As the spacecraft was in the process of rotating, Anders took this iconic picture showing Earth rising over the Moon’s horizon. In 2018, the International Ast...
2022年2月27日 Earthrise 1: Historic Image Remastered Image Credit: NASA, Apollo 8 Crew, Bill Anders; Processing and License: Jim Weigang Explanation: “Oh my God! Look at that picture over there! Here’s the Earth coming up. Wow is that pretty!” Soon after that pronouncement, 50 years ago today, one of the most famous images ever taken was snapp...
1964年7月，第一颗土星五号S-IVB，或第三阶段测试硬件，从加州长滩交付给美国宇航局马歇尔航天飞行中心。S-IVB由道格拉斯飞机公司研发和制造，直径约21又1/2英尺，长度约58英尺，由一个J-2发动机提供动力，能够产生22.5万磅的推力。在道格拉斯的垂直检出大楼里，道格拉斯飞机公司为SA-503火箭系统（阿波罗8号任务）装配了完整的S-IVB。 在全世界庆祝阿波罗计划50周年之际，美国宇航局将重返月球，在那里建立一个永久基地，并为包括火星在内的深空载人探索开发项目。 In July 1964, the first Saturn V S-IVB, or third stage test hardware, was delivered to NASA’s Marshall Space Flight Cente...