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NASA’s massive ‘Curiosity’ rover is almost ready to begin the first leg of its long trek to the surface of the Red Planet. Engineers at NASA’s Jet Propulsion Laboratory in California are nearly finished with assembling and testing all the components of the Mars Science Laboratory (MSL) mission (see photos above and below).

The MSL team plans to ship Curiosity as well as the cruise stage, descent stage and back shell to the Kennedy Space Center (KSC) in May and June. After arriving at KSC, all the pieces will be integrated together and tested during final assembly in a clean room. The rover will then be installed inside a 5 meter diameter nose cone, shipped the short distance to Cape Canaveral and then bolted atop an Atlas V rocket (photo below).

Top of Mars Rover Curiosity's Remote Sensing Mast.
The remote sensing mast on NASA Mars rover Curiosity holds two science instruments for studying the rover's surroundings and two stereo navigation cameras for use in driving the rover and planning rover activities. Credit: NASA/JPL-Caltech

The launch window for Curiosity extends from Nov. 25 to Dec. 18, 2011. The first stage of the powerful Atlas V rocket will be augmented with four solid rocket boosters. The Atlas V has previously launched two planetary missions; the Mars Reconnaissance Orbiter (MRO) and the New Horizons mission to Pluto.

Take a long gander at the 3 meter long rover because its appearance is now very much how it will look while it’s roving along intriguing martian landscapes for at least two earth years after landing in August 2012.

NASA Mars Rover Curiosity at JPL, View from Front Left Corner.
Support equipment is holding the Mars rover Curiosity slightly off the floor. When the wheels are on the ground, the top of the rover's mast is about 2.2 meters (7 feet) above ground level. Credit: NASA/JPL-Caltech

The mini-Cooper sized Curiosity rover is equipped with 10 science instruments to investigate Martian soil and rock samples in far greater detail than ever before. Curiosity’s science payload weighs ten times more than any prior Mars rover mission.

The goal is to search for clues to environmental conditions favorable for microbial life and for preserving evidence about whether Martian life ever existed in the past or today. NASA is scrutinizing a list of four potential landing sites for the best chance of finding a habitable zone.

Arm and Mast of Curiosity Mars Rover.
Curiosity's arm and remote sensing mast carry science instruments and other tools for the mission. This image, taken April 4, 2011, inside the Spacecraft Assembly Facility at JPL shows the arm on the left and the mast just right of center. Credit: NASA/JPL-Caltech
Atlas V rocket at pad 41 at Cape Canaveral Air Force Station.
An Atlas V rocket similar to this one with a 5 meter diameter nose cone – but with 4 solid rocket boosters added - will launch Curiosity to Mars in late 2011. Credit: Ken Kremer
Atlas V launch vehicle will blast Curiosity to Mars
Ken Kremer

Dr. Ken Kremer is a speaker, research scientist, freelance science journalist (KSC area,FL) and photographer whose articles, space exploration images and Mars mosaics have appeared in magazines, books, websites and calendars including Astronomy Picture of the Day, NBC, FOX, BBC, SPACE.com, Spaceflight Now, Science and the covers of Aviation Week & Space Technology, Spaceflight and the Explorers Club magazines. Ken has presented at numerous educational institutions, civic & religious organizations, museums and astronomy clubs. Ken has reported first hand from the Kennedy Space Center, Cape Canaveral, NASA Wallops, NASA Michoud/Stennis/Langley and on over 80 launches including 8 shuttle launches. He lectures on both Human and Robotic spaceflight - www.kenkremer.com. Follow Ken on Facebook and Twitter

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