The Phoenix lander landed on Mars in May, 2008. It isn't really a rover.
It is a lander, doesn't move around like the Mars Exploration Rovers - Spirit and Opportunity.
Pathfinder is expected to land in May 2008. Before this, it was the Opportunity rover in 2004.
It is a Mars rover.
Curiosity is the name given to the latest Mars rover, which landed on the red planet on August 6, 2012.
Sojourner
His name was sojourner.
The first rovers sent to Mars were the Russian Rovers,Mars 2 and Mars 3. But, Mars 2 crash-landed on the planet and Mars 3 ceased transmissions 20 seconds after landing. Mariner 4 was the first succesfully landed probe.
it was the great rover
The Mars buggy started exploring the red planet, Mars, on July 6, 1997. The buggy was name Sojourner and has explored Mars for three months.
curosity
The automatic motor vehicle got its name "Mars rover" because some people think the device looks a bit like a dog.
There's a robot on Mars call, "The Mars Rover" if that is what you are talking about
Sojourner Rover