Originally posted by: KillerCharlie
How long have these things been going? Weren't they hoping for like 3 months of operation each? They must be 10x that now.
Yes the initial estimate was projected to be 3 months of operation and they been there two years past their mark.
I just read this article for a class I have that deals with the next generation of rovers.
http://www.spectrum.ieee.org/mar06/3059
They are designing autonomous rovers (their prototype is named Zoe) so that they don't have to give step by step instructions to the current rovers such as Spirit.
from the article
The Mars bots get their driving instructions from operators back at the Jet Propulsion Laboratory, in Pasadena, Calif. Progress is slow?on a typical day, each rover may move only a few tens of meters. As of January, Spirit?s odometer stood at a little more than 6 kilometers, while Opportunity had trekked about 6.5 km. Their Chilean descendant, Zoë, by contrast, can cover that distance and more in a single day and can operate autonomously. And while the Mars machines are designed to study the planet?s geology, Zoë is more a biologist, looking for signs of microscopic life.