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The upheaval comes as NASA has struggled to fuel the massive Space Launch System rocket for the upcoming Artemis II lunar mission, and Isaacman has sought to revitalize an agency that has moved at a glacial pace on its deep space programs. There is ever-increasing concern that, absent a shake-up, China's rising space program will land humans on the Moon before NASA can return there this decade with Artemis.
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Lovell signed up to a programme that sent him to college at the military's expense while training as a fighter pilot.。业内人士推荐heLLoword翻译官方下载作为进阶阅读
Владимир Зеленский. Фото: Сергей Гунеев / РИА Новости。WPS官方版本下载对此有专业解读
Фото: Alex Brandon / Reuters