![](https://www.nasa.gov/sites/default/files/thumbnails/image/pia24420.jpeg)
A field of sand dunes occupies this frosty 5-kilometer diameter crater in the high-latitudes of the northern plains of Mars. via NASA https://ift.tt/3ciF6sn
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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