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 ...

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.

A team of Chinese scientists has created a six-legged "space mining robot" inspired by insects, which could be used for prospecting and mining on the moon or asteroids in the future.

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

Google支持的 FireSat 卫星群的第一颗卫星在周末成功进入轨道，开启了野火探测和监控的新时代。该星座将密切关注野火。 该星座的 50 多颗卫星全面投入运行后，几乎可以每 20 分钟对地球表面进行一次成像。

NASA astronauts Butch Wilmore and Suni Williams returned to Earth in a SpaceX capsule on Tuesday with a soft splashdown off Florida's coast. Credit: Supplied / NASA ...

FireSat 星座的使命是密切监视全球范围内的野火。当全面投入运行后， 这个星座的 50 多颗卫星将能够每 20 分钟对地球表面的几乎所有区域进行一次成像 。在 2026 年投入运行的初期阶段，星座将由三颗卫星组成，届时将能够每天两次覆盖全球每一个角落。

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。

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...

人类消耗的第二大自然资源是沙子，仅次于水。我们的城市是用沙子建造的，这种日益减少的资源被许多关键行业广泛消耗。每年，从河流和海岸开采的沙子接近500亿吨，是自然补充速度的两倍。随着相关的社会环境影响越来越多，迫切需要可持续地管理这种需求资源。

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Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...