As of December 2011, there are at least two of them on the surface,
and another one is on the way.
The Mars rover was built by the United States of America.
No, the Mars rover and the Mars Pathfinder rover are not the same thing. The Mars Pathfinder rover, named Sojourner, landed on Mars in 1997 and was the first rover to explore the Martian surface. The Mars rover refers to a series of rovers sent to Mars by NASA, including the Spirit, Opportunity, Curiosity, and Perseverance rovers.
Curiosity rover
The Mars Rover was created in the early 2000's and made its first trip to Mars in 2003. The Mars Rover is just one of NASA's many projects to explore Mars.
The Mars Rover has explored Mars and "Spirit" is the spacecraft that was sent on November 2011 and is going to Mars.
The Mars rover was built by the United States of America.
No, the Mars rover and the Mars Pathfinder rover are not the same thing. The Mars Pathfinder rover, named Sojourner, landed on Mars in 1997 and was the first rover to explore the Martian surface. The Mars rover refers to a series of rovers sent to Mars by NASA, including the Spirit, Opportunity, Curiosity, and Perseverance rovers.
The Mars Rover was not discovered it was invented.
the mars rover Spirit found water or ice on Mars
Yes, the Mars Rover has cameras to examine the land on Mars.
NASA made the mars rover probably because they want to learn about Mars.
No they are different rovers.
On Mars...
by rockets
mars
mars rover
The first Land Rover sent to Mars was the Mars rover named "Sojourner," which was part of the Mars Pathfinder mission launched by NASA in 1996. It landed on Mars on July 4, 1997, and was the first rover to successfully operate on the Martian surface.