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.
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).
NASA’s Curiosity rover has just reached its third anniversary milestone on Mars, after landing in Gale crater on Aug. 5, 2012, and since then has made some incredible science discoveries, with more to come in the months and years ahead. NASA is celebrating this achievement and you can take part, too!
Some great new images of very finely layered rocks near Jocko Butte on sol 976, from Curiosity. The layers tell a geological story of alternating wet conditions in this area on Mars a long time ago. These thin, delicate layers are an amazing sight! All of the raw images from Curiosity can be seen here.
Two new beautiful composite images, from two different rovers and locations on Mars. The first is a sunset in Gale crater, taken by Curiosity. Martian sunsets look bluish due to the light scattering effects of reddish dust in the atmosphere. The other image, from Opportunity, is of the scenic Lindbergh rock mound in the Spirit of St. Louis crater, on the rim of the huge Endeavour crater. A natural monument!
There were some beautiful new images taken of the foothills of Mount Sharp from the Curiosity rover on Mars as it passed through the Artist’s Drive and Logan’s Run valleys. The canyons and mesas on the lower slopes of the mountain keep getting closer!
The search for liquid water on Mars is one that has been on-going for decades. It can’t exist for long on the surface, as it will quickly sublimate into the cold, thin atmosphere. Aquifers deep below the surface are still possible, but there is also another tantalizing possibility which scientists have been considering: brines. Such salty liquid water could theoretically last a bit longer on the surface or in the near-subsurface, and now the Curiosity rover has provided more evidence that this may indeed be happening at its location in Gale Crater, as well as elsewhere.
Curiosity has also been taking a lot of close-up images of the sand dune which the rover has “toe-dipped” into. The rover’s wheels have left very distinct impressions in the very fine-grained sand within the dune, while the outside of the dune has a denser “crust” covered with many small rounded grains, similar to other dunes seen by the Spirit and Opportunity rovers. Whether or not Curiosity will actually drive through the dune (if deemed safe) to the other side of Dingo Gap or just go around hasn’t been decided yet, but in the meantime there are lots of new images to enjoy.
Dingo Gap has turned out to be quite an interesting place for the Curiosity rover, being both scenic and of great geological interest. Rocks of all sizes and shapes litter the landscape amid the cliffs and sand dunes and Curiosity is continuing to study this area before driving further south toward Mount Sharp. Another new panorama by Damia Bouic shows the scenery in stunning high resolution and there is also a great overview by Emily Lakdawalla on The Planetary Society blog.