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Of all the trips to the moon and opportunities to take pictures of the Earth, why is this picture the only one the public ever sees? — Preceding
unsigned comment added by
Ywaz (
talk •
contribs)
Well one obvious reason is that you have to be pretty far back from the Earth the see it all at once. None of the space stations out there now get nearly that far. You could patch together a bunch of the pictures taken from the orbiter, but then all you've got is a low-res version of Google Earth. —Preceding
unsigned comment added by
210.254.117.186 (
talk)
13:47, 1 March 2009 (UTC)reply
Half of the planet is always in shadow. To capture a completely illuminated hemisphere, which makes a complete circle instead of a crescent in a photo, requires that the sun, camera (i.e. the spacecraft), and earth be collinear. See the
Blue Marble article.
Yothgoboufnir (
talk)
22:12, 18 June 2009 (UTC)reply