Ice-Exposing Impact Crater Surrounded by Polygon Terrain
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The ice-exposing impact crater at the center of this image is an example of what scientists look for when mapping places where future astronauts should land on Mars. NASA's Mars Reconnaissance Orbiter captured this view using its High-Resolution Imaging Science Experiment (HiRISE) camera on July 17, 2016. The color in this image has been enhanced for effect; water ice would not actually look this blue on Mars. The crater is estimated to be about 59 feet wide (18 meters wide). Surrounding the impact is a rough kind of surface known as "polygon terrain," which on Earth is known to form when subsurface ice expands and contracts repeatedly over time. Seeing this terrain surrounding an ice-exposi — NASA JPL · 2023. ABD devlet eseri: kamu mali, ticari islerde de serbestce kullanilabilir.
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