"Velovich03" wrote in message
...
Presuming no other major failures occur I predict the rovers will never
fail dues to dust and will work for years.

Sojuner didn't.



It is entirely unknown how long Sojourner Truth lasted.
The communication link was broken with the lander.
The rover was working just fine but could only
communicate through the lander. When the lander
stopped working all communication was lost with
the still-working rover.