it moves very slow
they are controlled by the NASA they make the rover move
No one has sent 15 rovers to Mars
Mars rovers were made sometime in the 1970's
All of their Mars Rovers have wheels.
the two rovers are:- Spirit and Opportunity.
rovering mars
They are taken there, by spacecraft.
yes, the mars rover
No. But rovers have.
Rovers
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.