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Brine Flows on Mars
November 13, 2015 @ 3:30 PM - 4:30 PM CST
Determining whether liquid water exists on the Martian surface is central to understanding the hydrologic cycle and potential for extant life on Mars. Brine flows (or seeps) have been proposed to explain the formation of some narrow streaks (termed recurring slope lineae (RSL)) observed on Mars, yet direct spectroscopic evidence was missing. Analysis of spectral data from the Compact Reconnaissance Imaging Spectrometer for Mars instrument onboard the Mars Reconnaissance Orbiter provides the first spectral evidence that recurring slope lineae form as a result of contemporary water activity on Mars. In this talk, I will give a synopsis of RSL activity on Mars, and spectral detection of hydrated salts on the slopes where rsl form.