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Forever 9/11 memorial The cable guard on Opportunity's Rock Abrasion Tool (RAT), built and operated by
Honeybee Robotics, is made from metal from the World Trade Center. The rover took
the view above, which shows the American flag that was affixed to the shields, with two
different cameras on the 10th anniversary of the attacks on the World Trade Center,
Sep. 11, 2011. “I was a grad student at Washington University St. Louis then and
working as the MER documentarian,” said MER Deputy Project Scientist Abby Fraeman,
of JPL-Caltech. “I still remember almost every detail of that planning day. It’s still one of
my top five favorite images of the mission because of all it represents.” NASA / JPL-Caltech / Cornell / ASU