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体育沙龙

时间:2021-03-09

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体育沙龙“There’s just no reason for this anymore.体育沙龙But there have been hints of water dribblingout from underground (SN: 9/28/15),and a controversial report of aburied lake near the Red Planet’s south pole (SN: 12/17/18).体育沙龙To learn more about how brines would behave in contemporaryMartian conditions, Edgard Rivera-Valentín, a planetary scientist at the Lunar andPlanetary Institute in Houston, and colleagues ran computer simulations.体育沙龙Theyfound that one type of brine could remain liquid on the planet’s surface and afew centimeters below for up to six consecutive hoursacross 40 percent of the planet, mostly at middle to high northernlatitudes.。体育沙龙。体育沙龙However, those brines would never get warmer than about –48° Celsius, about 25 degrees below theknown tolerance for life on Earth, the team reports online May 11 in NatureAstronomy.体育沙龙This finding is useful for anyone planning a mission toMars, the researchers say.体育沙龙Expeditions to locales with the potential for liquidwater are subject tostrict protection protocols (SN: 10/29/19) to reduce the risk ofcontamination from Earth.

体育沙龙Theyfound that one type of brine could remain liquid on the planet’s surface and afew centimeters below for up to six consecutive hoursacross 40 percent of the planet, mostly at middle to high northernlatitudes.。体育沙龙。体育沙龙However, those brines would never get warmer than about –48° Celsius, about 25 degrees below theknown tolerance for life on Earth, the team reports online May 11 in NatureAstronomy.

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