geoff wrote:
In message , The Natural Philosopher
writes
"Curiosity is about twice as long and five times as heavy as NASA's
two previous Mars rovers, Spirit and Opportunity, and its
plutonium-powered nuclear battery will provide the mobile laboratory
with about 2.7 kWh per day, far in excess of the 1 kWh per day maximum
of the earlier solar-powered rovers. The nuclear battery is also much
longer-lasting than the solar power systems used by the previous
missions, and is expected to last through the rover's planned
operations and beyond, providing the potential for the mission to be
extended."

Have you not heard of the greenpeace mars probe?

They're using windmills

They work really well at 18000 mph in a vacuum


--
To people who know nothing, anything is possible.
To people who know too much, it is a sad fact
that they know how little is really possible -
and how hard it is to achieve it.