This is interesting, a recent HiRISE photo from the Mars Reconnaissance Orbiter spacecraft showing an oval pit or crater with an opening in the bottom (cropped here from one of the larger images) near Galaxias Chaos on Mars. The opening is also oval, and you can see some sand dunes on the bottom. How did it form? More images are available here.
The Cassini spacecraft has taken another stunning new panoramic image, released yesterday, showing Saturn and its rings in all of their glory. It has done this before, including ones showing the Earth and Moon in the far distance, as tiny specks of light. But this new image is even better; not only does it again show Saturn and its rings beautifully backlit against the Sun in natural color, but this one also shows Mars and Venus, as well as the Earth and Moon!
As it continues to make its way to Mount Sharp, the Curiosity rover has been sending back to Earth some amazing images of the Martian surface. This latest “postcard” panoramic image by Damia Bouic is a montage of some of these latest photos, from sol 409. Part of the rim of Gale crater can be seen in the distance. Larger versions of the image (black & white and colour) can be seen here (French website). Thanks again to Damia for the use of her images, which beautifully capture the Martian scenery; the next best thing to actually being there! The rest of his Curiosity images can be seen here.
As the Curiosity rover currently inspects a rock outcrop called Cooperstown, this rock seems to be baring its teeth. Some interesting pointed protrusions can be seen near the middle and lower right of the image. Below is a closeup of one of these teeth-like protrusions. Fossilized Martian shark teeth? No, probably not, but they are an intriguing feature for sure.