How long will robots be on Mars?
Tanisha ANSWER: The twin rovers that will land on Mars in 2003/2004 are designed to last for 90 days each. The rovers need power to work, and they get their power from solar arrays that collect the power of the Sun. But Mars is a very dusty place, and eventually dust will collect on the solar arrays. When the dust gets thick enough, it will not allow the Sun to get through to the solar arrays, and the rovers will not get enough power to continue. Robert A.
