美股三大指数集体收跌，道指跌1.05%，本周累跌1.31%，2月份累涨0.17%，月线10连涨；纳指跌0.92%，本周累跌0.95%，2月份累跌3.38%；标普500指数跌0.43%，本周累跌0.44%，2月份累跌0.87%。美国KBW银行指数跌近5%，创去年4月来最大单日跌幅。大型科技股多数下跌，英伟达跌超4%，苹果跌逾3%，微软跌超2%，特斯拉、Meta跌超1%；奈飞涨超13%，创2023年10月以来最佳单日表现；谷歌涨超1%，亚马逊小幅上涨。高盛跌逾7%，摩根士丹利跌超6%，富国银行、花旗集团跌超5%，美国银行跌超4%。戴尔科技涨约22%，创2024年3月份以来最大单日涨幅。Block涨近17%，创2022年以来最大单日涨幅。（界面新闻）
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。关于这个话题，爱思助手下载最新版本提供了深入分析
Lovell, Jack Swigert and Fred Haise were men of science - highly trained and determined to follow Armstrong and Aldrin to the lunar surface. But things went badly wrong.
In the vacuum of space, the amount of debris—spent rocket stages, splintered satellites, micrometeoroids—numbers in the millions, all zooming about, often at 17,000 mph speeds. They’re also constantly hitting each other in a tsuris of exponential littering. Most of these pieces are tiny, and many are not anywhere near the altitude of the ISS. But the area isn’t completely clean.