To fix that, NASA is redefining the Artemis campaign as a step‑by‑step test program. The agency now aims to launch roughly once every 10 months, standardize its rocket configuration, and rebuild in‑house expertise that has withered over time.
Whatever the case, a wounded ISS will have been fairly rotten luck. Back in 2017, scientists from NASA and a Russian space contractor put the odds of this worst-case scenario at 1 in 121. As of late 2025, NASA told WIRED the risk of debris causing a depressurization event in any six-month period was somewhere between 1 in 36 and 1 in 170.
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"I'll see you online," he added.
好吃，不等于好种。这株看似寻常的禾本科作物，生育期长达220天至270天，从秋种到夏收，可谓“种在冰上、收在火上”。在山东省沂南县张庄镇前汉沿村，去年10月底以来，种粮大户刘增升没少操心：播前把800多亩地深翻了一遍，又拌了种子，播后镇压了一次，给弱苗喷施叶面肥……一直到开春浇下返青水，眼看苗情转好，他才宽下心。