As of November 2016 there are two operational Mars rovers: Opportunity and Curiosity.
There are two Mars rovers, named Spirit and Opportunity. There's obviously "Curiosity" now too. In fact Spirit doesn't work anymore, so there are still two Mars rovers working.
As of August 2010, the Opportunity rover is still operational. The Spirit rover may still be operational but has not been able to contact Earth since March.
There have been seven attempts at sending rovers to Mars of which four landed successfully.
Yes. While we can land things on Mars we currently do not have the ability of getting them off of Mars.
"Spirit" and "Opportunity". Those two were sent in January, year of 2004. Before that a small one called "Sojourner". And now "Curiosity", of course. So that's 4 altogether. That's not counting those that failed.
THEY WERE SENT TO MARS SO THAT WE CAN DISCOVER MANY NEW THINGS ON MARS!!!
4 rovers :- Sojourner Opportunity Spirit Curiosity.
No one has sent 15 rovers to Mars
Mars rovers were made sometime in the 1970's
All of their Mars Rovers have wheels.
So far, Nasa has successfully acquired four Mars rovers: the Mars Pathfinder, Sojourner, Opportunity, and the Spirit. These were managed by the Jet Propulsion Laboratory and the Mars Science Laboratory.
the two rovers are:- Spirit and Opportunity.