LONDON, March 17 (UPI) — American astronaut Buzz Aldrin appeared in a viral photo at Stonehenge to send a message to humanity: we need to get to Mars.
Looking up to the heavens with the ancient landmark in the background, Aldrin wore his famous “Get your ass to Mars” shirt.
While at @EH_Stonehenge yesterday I decided to send a message to the cosmos. #GYATM (Photo by James O.Davies) pic.twitter.com/ra5Y2OsSPB— Buzz Aldrin (@TheRealBuzz) March 16, 2015
Aldrin has stated the need to not only visit but colonize the Red Planet. The shirts are sold by his non-profit ShareSpace foundation which promotes science, technology, engineering and math, or STEM, education.
The shirt is available in a variety of styles on the ShareSpace website.

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