The streaks were first spotted in 2010 by Lujendra Ojha, then an undergraduate at the University of Arizona. Ojha was studying images returned to Earth from the HiRISE camera, aboard NASA’s Mars Reconnaissance Orbiter. At the time, he says, he had no clue how important his observation would be.
2010年,一位亚利桑那大学的学生——卢金德拉·欧嘉首次发现了这种深色线纹。他一直在研究从装在美国国家航空暨太空总署火星侦察卫星上的照相机发回地球的照片。欧嘉说,那时候的他一点都不知道这个发现有这么重要。
Is Mars Sweating?
火星是流汗了吗?
A big question swirls around the origin of that water: Where is it coming from? One possibility is that the seeps are fueled by an aquifer or melting subsurface ice. These scenarios would have Mars essentially sweating, with saltwater seeping from its pores and trickling down slopes as the planet warms.
问题在于水源:这些水从哪里来?一种可能是由含水层渗透、或地下冰融化造成的。这些现象导致火星“流汗”——由于星球变暖,地下的盐水从地表空隙渗透出来,并沿着表面斜坡流淌下来。
The water might also be atmospheric in origin, which is the hypothesis the team seems to favor. In this scenario, surface salts absorb water vapor in the Martian atmosphere.
水也有可能是来源于大气,这一说法也有人认可。这种假设是说,火星表面盐分吸取了大气中的水蒸气。
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