This week in science | Science

Neuroimmunology The meninges consist of three membranes that surround and protect the central nervous system (CNS). Recent studies have noted the existence of myeloid cells residing there, but little is known about their ontogenesis and function, and it is not known whether other populations of meningeal immune cells play an …

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Ugly diamonds hold more than a billion years of Earth’s history

Cloudy and yellowish “fibrous diamonds” are too unsightly for most jewelers. But for scientists, their crystal structure holds precious secrets dating back a billion years or more. Yaakov Weiss, an Earth scientist at the Hebrew University of Jerusalem, and his colleagues crushed portions of South African fibrous diamonds to extract …

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