CURRENT AFFAIRS

Detailed explanation-1: -Liquid water appears to flow from some steep, relatively warm slopes on the Martian surface. Features known as recurring slope lineae (RSL) were first identified in 2011in images taken by the High Resolution Imaging Science Experiment (HiRISE) camera aboard the Mars Reconnaissance Orbiter (MRO).

Detailed explanation-2: -Abstract. Flowing water and brine have been proposed to cause seasonally reappearing dark streaks called recurring slope lineae (RSL) on steep warm slopes on Mars, along with other formation mechanisms that do not involve water.

Detailed explanation-3: -Recurring slope lineae (RSL) are enigmatic dark streaks on steep martian slopes that appear during the martian summer and disappear during the winter. RSL have been hypothesized to be flows, but whether they are flows of liquid water, brines, or dry sandy material (or all of these in different locations) is uncertain.

Detailed explanation-4: -Seasonal flows on warm Martian slopes (also called recurring slope lineae, recurrent slope lineae and RSL) are thought to be salty water flows occurring during the warmest months on Mars, or alternatively, dry grains that “flow” downslope of at least 27 degrees.

Detailed explanation-5: -Geologic evidence of past water includes enormous outflow channels carved by floods, ancient river valley networks, deltas, and lakebeds; and the detection of rocks and minerals on the surface that could only have formed in liquid water.