received it in a fwd mail, many of u may already have seen this pic 
(quality is reduced to upload here)
[thumb=A]daynight_reduced_quality.JPG[/thumb]
The picture is of Europe and Africa when the sun is setting. Half of
the
picture is in night. The bright dots you see are the cities lights.
The
top
part of Africa is the Sahara Desert. This was taken by the crew on
board
Columbia on its last mission.
This photo was taken via satellite, on a cloudless day. Note how the
lights
are already on in Holland, Paris, and Barcelona, and how it’s still
daylight
in London, Lisbon, and Madrid. The sun is still shining on the
Straight
of
Gibraltar, and the Mediterranean Sea is already in darkness. In the
middle
of the Atlantic Ocean you can see the Azores Islands; below them to
the
right are the Madeira Islands; a bit below are the Canary Islands; and
further south, close to the farthest western point of Africa, the Cape
Verde
Islands. Note how the Sahara is huge and can be seen clearly both
during
daytime and nighttime. Tothe left, on top, is Greenland, totally frozen.
Fantastic!
~SUBHAN ALLAH ~