Mars rovers update: Curiosity turns toward Mount Sharp, Opportunity finishes in Marathon Valley

Self-portrait of the Curiosity rover at the drill site called Okoruso, on Naukluft Plateau. The image was taken on May 11, 2016, (sol 1,338). Image Credit: NASA/JPL-Caltech/MSSS
Self-portrait of the Curiosity rover at the drill site called Okoruso, on Naukluft Plateau. The image was taken on May 11, 2016, (sol 1,338). Image Credit: NASA/JPL-Caltech/MSSS

NASA’s current rovers, Curiosity and Opportunity, are continuing to explore their respective regions of Mars, with new findings that are providing yet more clues as to the geological history and potential past habitability of this fascinating world. They have also both just completed significant steps in their journeys and are now entering new and exciting phases of their missions. Both missions have found yet more evidence that the Mars we see today – cold and dry – was once much wetter and potentially habitable, at least for microorganisms.

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Curiosity rover confirms ancient lake(s) in Gale crater on Mars

Sedimentary strata at the base of Mount Sharp as seen at the Kimberly location. The strata in the foreground dip toward Mount Sharp, providing evidence of the former lake-filled depression that used to exist before most of the mountain formed. Image Credit: NASA/JPL-Caltech/MSSS
Sedimentary strata at the base of Mount Sharp as seen at the Kimberly location. The strata in the foreground dip toward Mount Sharp, providing evidence of the former lake-filled depression that used to exist before most of the mountain formed. Image Credit: NASA/JPL-Caltech/MSSS

Last week there was the exciting news that Mars still has flows of briny water occurring now, and this week there is more water-related news: additional findings from the Curiosity rover that the huge Gale crater was once a lake or series of lakes a long time ago. Curiosity had already found evidence that there used to be shallow lakes and streams in this area, but the new data confirms this and suggests that the lake(s) once filled Gale crater and were long-lasting, explaining the formation of Mount Sharp in the middle of the crater and also providing a potentially habitable environment for life.

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Image Gallery: foothills of Mount Sharp (white-balanced)

Image Credit: NASA/JPL-Caltech/MSSS
Image Credit: NASA/JPL-Caltech/MSSS

Another beautiful panoramic image of the foothills of Mount Sharp, taken by Curiosity on Sep. 9, 2015. The mesas, buttes and valleys can be seen in greater detail as the rover keeps getting closer. The image has been white-balanced to show the terrain under more Earth-like lighting conditions. The full-size version of the image is available here.

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Curiosity rover continues journey up Mount Sharp after science observations at ‘Marias Pass’

New low-angle “selfie” of the Curiosity rover taken while it was in Marias Pass, consisting of multiple images stitched together. Image Credit: NASA/JPL-Caltech/MSSS
New low-angle “selfie” of the Curiosity rover taken while it was in Marias Pass, consisting of multiple images stitched together. Image Credit: NASA/JPL-Caltech/MSSS

After extensive investigations of rock layers in Marias Pass, a shallow valley near the base of Mount Sharp, the Curiosity rover is now heading southwest again, to continue gradually climbing the lower slopes of the mountain. Marias Pass is a region with rocks and ground which contain high levels of silica and hydrogen, more evidence that there used to be a lot more water here than there is now.

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Image Gallery: new views of Mount Sharp foothills

Foothills on Mount Sharp. Image Credit: NASA/JPL-Caltech/MSSS/Lars (@LarsTheWanderer)
Foothills on Mount Sharp. Image Credit: NASA/JPL-Caltech/MSSS/Lars (@LarsTheWanderer)

There are a couple new views of the foothills on Mount Sharp from the Curiosity rover, and they are beautiful. Many layers, mesas and buttes are visible, reminiscent of the American southwest. Curiosity will keep getting closer in the weeks and months ahead. Image processing by Lars (@LarsTheWanderer).

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