Buzz Aldrin takes best Stonehenge photo

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.