BABAK TAFRESHI / SCIENCE PHOTO LIBRARY BABAK TAFRESHI / SCIENCE PHOTO LIBRARY
Timelapse video of night sky rotation above prehistoric rock art in the remote valley of Teimareh in central Iran. The valley is full of ancient petroglyphs, dating back to 4,500 to 17,000 years ago. With about 20,000 engraved images, the region is one of the world's most diverse petroglyph sites, still largely undiscovered.
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