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Martian Cave Entrances May Offer a Life-Friendly Radiation Shield

Leah Crane of New Scientist reports most of Mars is extremely inhospitable to life, but there may be a workaround. The areas near the entrances to caves should, in theory, be shielded from some of the harmful radiation that bombards the planet’s surface. Because Mars doesn’t have a global magnetic field or a thick atmosphere like Earth, its surface is exposed to dangerous ultraviolet (UV) radiation and ionising radiation from space, which would present a problem for native life and human explorers alike. Any living thing on the Martian surface would be exposed to doses of radiation that are…
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