National Aeronautics and Space Administration Logo
Follow this link to skip to the main content NASA Banner
Solar System Exploration
Memorial Image Taken on Mars on Sept. 11, 2011
Memorial Image Taken on Mars on Sept. 11, 2011 (click to enlarge)

Memorial Image Taken on Mars on Sept. 11, 2011
Date: 11 Sep 2011

This view of an American flag on metal recovered from the site of the World Trade Center towers shortly after their destruction on 11 Sept. 2001, was taken on Mars on 11 Sept. 2011, the 10th anniversary of the attacks on the towers. The aluminum component bearing the image of the flag serves as the cable guard of a tool on NASA's Mars Exploration Rover Opportunity. Two cameras on Opportunity recorded exposures during the rover's 2,713th Martian day that were combined into this view.

The cable guard made of metal from the World Trade Center is on Opportunity's rock abrasion tool, which was built and is operated by Honeybee Robotics, New York.

The color portion of the image combines three exposures taken through different filters by Opportunity's panoramic camera to yield approximate true color as the human eye would see it on Mars. The black-and-white portion of the view, providing context, comes from Opportunity's navigation camera.

Last Update: 12 Sept 2011 (AMB)

Credit: NASA/JPL-Caltech/Cornell University/Arizona State University

Awards and Recognition   Solar System Exploration Roadmap   Contact Us   Site Map   Print This Page
NASA Official: Kristen Erickson
Advisory: Dr. James Green, Director of Planetary Science
Outreach Manager: Alice Wessen
Curator/Editor: Phil Davis
Science Writers: Courtney O'Connor and Bill Dunford
Producer: Greg Baerg
Webmaster: David Martin
> NASA Science Mission Directorate
> Budgets, Strategic Plans and Accountability Reports
> Equal Employment Opportunity Data
   Posted Pursuant to the No Fear Act
> Information-Dissemination Policies and Inventories
> Freedom of Information Act
> Privacy Policy & Important Notices
> Inspector General Hotline
> Office of the Inspector General
> NASA Communications Policy
> NASA Advisory Council
> Open Government at NASA
Last Updated: 18 Sep 2013