Astronomy:Arrhenius (Martian crater)
Arrhenius is an impact crater in the Eridania quadrangle on Mars at 40.3° S and 237.4° W. and is 129.0 km in diameter. Its name, for Svante Arrhenius, was approved in 1973 by the IAU. Evidence of previous glacial activity is evident in images. There also appear to be branched channels just outside the crater.
Arrhenius Crater, as seen by CTX camera (on Mars Reconnaissance Orbiter).
Glacial features in Arrhenius Crater, as seen by HiRISE under the HiWish program. Arrows point to old glaciers.
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