[FreedomCalls]

I just read an article that indicates they think they can get around a 200-sol lifetime out of each lander, so they've still got some time (Spirit is on sol 78, Opportunity is on sol 57).

How long until the Earth and Mars are on opposite sides of the sun? We will lose contact before that. It takes Earth 182 days to get from one side to directly opposite on the other. The question is by how much does Mars lag behind?

[Elsie]

Mars takes 686.98 Earth days to complete an orbit around the Sun.

Go here to see a small sample.... http://www.humnet.ucla.edu/humnet/french/faculty/gans/java/SolarApplet.html


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