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8 years
eight month
22
2 months
About 250 days, but I haven't checked the exact number. (I guess you mean the Mars Exploration Rover mission.)
The mars rover is a robot sent to mars to take samples and pictures for scientists to analyse back on earth, for detailed information i suggest Wikipeia
sound
Curiosity, NASA's Mars rover, was launched on November 26, 2011, and it landed on Mars on August 6, 2012. The journey from Earth to Mars took approximately 253 days for the rover to reach its destination and successfully land in the Gale Crater.
The Mars 2, Prop-M rover, was sent in 1971 and was the first Mars Rover to be sent. Unfortunately the attempt was unsuccessful.The first successful Mars rover (and the third successful rover sent into space) was Sojourner. It was launched by NASA on December 4, 1996, and landed July 4, 1997. The most recent, successful, and currently operating Mars rover is the Opportunity (MER-B), Mars Exploration Rover, which landed successfully on January 25, 2004.So far there have been a total of five Mars Rovers.
It would take about 7 months to get to Mars
The Rover does not have that technology. It is their to take photos and send back results of tests.
"Curiosity" was launched on November 26, 2011 .