两名美国国家航空航天局 (National Aeronautics and Space Administration, 简称NASA)宇航员自去年夏天以来一直滞留在国际空间站，在SpaceX飞船将替换人员送到国际空间站后，将带这两名宇航员返回地球。

（华盛顿19日讯）终于回家！在太空意外停留9个月后，美国太空总署（NASA）的两名太空人终于在当地时间周二返抵地球，结束了这项引起全球关注并成为政治焦点的任务。法新社报导，一艘 SpaceX ...

NASA astronauts Suni Williams and Butch Wilmore, who have been stranded at the International Space Station since last June, started journey back to Earth aboard SpaceX's Dragon spacecraft early ...

NASA astronauts Suni Williams and Butch Wilmore, who have been stranded at the International Space Station (ISS) since last ...

LOS ANGELES, March 18 (Xinhua) -- NASA astronauts Suni Williams and Butch Wilmore, who had been stranded at the International Space Station (ISS) since last June, returned to Earth Tuesday afternoon.

Muscle Atrophy: In microgravity, the muscles do not have to support the body’s weight, leading to significant muscle weakening. Astronauts typically lose about 1% of muscle mass per month. For example ...

1月4日消息，据国外媒体报道称，日前美国国家航空航天局地球观测站（NASA Earth Observatory）以“在中国建造光伏长城”为题，发布了一组卫星图像 ...

LOS ANGELES, March 24 (Xinhua) -- Researchers examining pulverized rock samples aboard NASA's Curiosity rover have discovered the largest organic molecules ever found on Mars, according to a new study ...