Combination of sources. http://www.pancroma.com/data.html Here's a start at free places to get some imagery. Basically just google search places that offer satellite imagery. There are lots of satellites up there taking pictures all the time. Its just a matter of digging through different websites to find out who uses each others images, and who has their own sets.
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lawfag123 ago
How did you find these images that go back in time for one location?
Werwer12 ago
Combination of sources. http://www.pancroma.com/data.html Here's a start at free places to get some imagery. Basically just google search places that offer satellite imagery. There are lots of satellites up there taking pictures all the time. Its just a matter of digging through different websites to find out who uses each others images, and who has their own sets.