![](https://www.nasa.gov/sites/default/files/thumbnails/image/pia23454.jpg)
This image shows sedimentary rock and sand within Danielson Crater, an impact crater about 42 miles or 67 kilometers in diameter, located in the southwest Arabia Terra region of Mars. via NASA https://ift.tt/2LCWPNJ
The blue tentacle-like arms containing gecko-like adhesive pads, attached to an Astrobee robotic free-flyer, reach out and grapple a "...
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