![](https://www.nasa.gov/sites/default/files/thumbnails/image/potw1748a.jpeg)
The Hubble Space Telescope peers into the distant universe to reveal a galaxy cluster called Abell 2537. via NASA http://ift.tt/2BtpnkK
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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