"Henry Spencer" wrote in message
...
In article a5rMd.33559$4I2.25655@attbi_s01,
George wrote:
So the picture should in northern summer, but where is the north pole
(is the picture upside down?), and what are these cloudy areas ?

Ther Martian pole evaporates in the northern summer.

No, there is a permanent water-ice polar cap in addition to the winter
CO2-ice cap.
--
"Think outside the box -- the box isn't our friend." | Henry Spencer
-- George Herbert |

Yes, that apparently is true. However, if you look at these images, below, you
will see that the difference is considerable. In other words, there may be
permanent ice at the pole (i.e., ice in the summer as well,), but I think you
will agree that it shrinks to almost nothing, comparitively:

http://www.space.com/scienceastronom...es_020320.html