The photo above reminds me of an undersea scene with sponges or coral or something. But it isn’t. It’s the surface of Mars, photographed from the orbiting Mars Reconnaissance Orbiter spacecraft using its HiRISE (High Resolution Imaging Science Experiment) camera. The false coloring is introduced by scientists to help highlight features they are studying. The photo of sand dunes in the Noachis Terra of Mars spans an area slightly less than half a mile across.
The first photo below is also of Martian sand dunes. It reminds me of an amoeba under a microscope.
These spectacular photos and 32 more of the Martian surface are featured on Business Insider in “Epically awesome photos of Mars.” Don’t miss them. In one you can see the platform for NASA’s Spirit Mars rover. In another (bottom), you can see the rover Curiosity (bright spot) and the tracks it left (across lower third of photo) as it drove away from its landing site (blue spots surrounded by blast marks).
The photos were selected from among the collections on the NASA/JPL website. For NASA’s details on these three, click on their respective credit lines.