- Missions to Mars: Athena 2003
- Mission will study the geology and chemistry of the planet, and Mars Sample Return and Athena are the first space projects designed to return rock samples from another planet. - NASA's M2K4: Roaming the Red Planet
- Discusses the lure of Mars exploration as well as its challenges. See images from the Red Planet and take a tour of the anatomy of Spirit and Opportunity Mars Rovers. - NASA Mars Exploration Rover Mission
- Provides information about the twin robot geologists, the Spirit and Opportunity Rovers, that landed on Mars in January 2004 in search of answers about the history of water on Mars. Includes mission updates and extensive photo galleries. - Maestro Headquarters
- Explore Mars with the programme that NASA scientists use to operate Spirit and Opportunity. - BBC: Exploring Mars
- Features in-depth coverage of the NASA and ESA efforts to unlock the scientific mysteries of Mars. - Mars Panoramas, The
- Interactive panaromic images from the Mars rover missions Spirit, Opportunity, and Pathfinder. - Mini-Thermal Emission Spectrometer (Mini-TES)
- Provides information about the Arizona State University instrument to be a part of the Athena package on the 2003 Mars Exploration Rovers. - Sign Up for Mars!
- NASA invites you to send your name to Mars on the next Mars Exploration Rover-2003 mission. - Mars Exploration Rover Mission - Wikipedia
- Hyperlinked article about NASA's crewless Mars exploration mission using the rovers Spirit and Opportunity. Includes a timeline and notes on the design of the rovers. - Roving Mars (2006)@
- Red Planet Rovers: A New Era in Mars Exploration
- SPACE.com feature page with news, photos, and background information about NASA's Mars Exploration Rovers - Spirit and Opportunity. - MER-B: The Complete Opportunity Mission
- SPACE.com Mars Rover special report with current news, archived reports, and multimedia presentations. - news@nature.com: Mission to Mars
- Rounds up the best of their ongoing coverage of the latest Martian news from NASA and the ESA. - Exploratorium: Journey to Mars
- Includes information and images from the Mars Exploration Rovers, webcasts, classroom material for teachers, and more. - MER-A: The Complete Spirit Mission
- Article archive and multimedia collection of SPACE.com's coverage of Mars Exploration Rover-A, Spirit. - Mars Rover Blog
- Unofficial blog and forum following the Martian odysseys of NASA rovers Spirit and Opportunity. - MarsQuest Online: Rover Images
- Flash site featuring the latest images from NASA's twin Mars rovers Spirit and Opportunity. Includes panoramas, daily image updates, closeups, and a full image library. - Kennedy Space Center: Virtual Launch Control Center
- Provides online coverage of launch day events and mission events for the Mars Exploration Rovers. - Mars Exploration Rover Imagery
- Presents raw and synthesized images from the Mars rovers Spirit and Opportunity. - SPACE.com: Landing Sites for Mars Exploration Rovers Identified
- Article covering the process of picking places on the Mars surface that are scientifically rewarding. - NASA: One Year on Mars
- Takes a look back at the year of discoveries by the Spirit and Opportunity Mars rovers. - Spaceflight Now: Mars Exploration Rovers
- Coverage of the missions of the twin Mars Exploration Rovers, Spirit and Opportunity. Includes pictures, video clips, and archive of past news stories. - Destination: MARS
- Includes an overview of the Spirit and Opportunity Mars Rover Mission along with details on the twin robotic field geologists' search for the planet's water history. - Kennedy Space Center: Mars Exploration Rovers
- Overview of the mission in which two robot geologists, Spirit and Opportunity, travel to Mars. Features launch coverage, multimedia and image gallery, and notes on mission processing activities. - NOVA: Mars Dead or Alive
- Companion to the documentary on NASA's twin rovers sent to determine if the red planet ever had conditions suitable for life. - Mars Explorer Rover 2003 Landing Sites
- Features an interactive data map display from NASA. - First Landing Site Workshop for the 2003 Mars Exploration Rovers
- Offers an overview of the 2001 meeting. - Free Spirit - JPL NASA
- Follow the efforts to free the Spirit Mars Rover from a sand trap where its wheels spots have sunk into the Martian soil. - JPL Mars Exploration Rovers
- NASA's JPL offers daily mission updates along with the latest images from the Spirit and Opportunity Rovers as they explore the geology of Mars. - Mars Exploration Rover Mission Photo Contest
- See Spirit's winning photo Sunset, which captures the sun as it sinks beneath the rim of Gusev Crater, along with a dozen runners up from Opportunity as well. - Mars Exploration Rovers - Explore the Cosmos | The Planetary Society
- Learn about the twin Mars Exploration Rovers (MER) -- Spirit and Opportunity -- that were designed to study the history of water on Mars at their landing sites and to uncover geologic clues about whether Mars had any environments wet enough in the past to have been hospitable to life.
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