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Moon dust not as strange as hoped

发布时间:2019-03-14 04:05:02来源:未知点击:

By Lisa Grossman (Image: Johnson Space Center Collection, NASA) EVER since a 1998 space shuttle experiment saw what appeared to be an anomalously heavy variety of matter, the hunt has been on for more of the same. Now, a search of lunar soil for so-called “strange matter” has come up short, casting doubt on whether it exists at all. The standard model of particle physics describes six types of quark,