26.9 MB (2.5 MB compressed)
3787 x 2481 pixels
32.0 x 21.1 cm ⏐ 12.6 x 8.3 in (300dpi)
JERRY SCHAD / SCIENCE PHOTO LIBRARY JERRY SCHAD / SCIENCE PHOTO LIBRARY
Star trails over a small lake in the Sierra Nevada mountain range. Star trails are formed using a time exposure, in this case nine hours, and are due to the apparent motion of the stars across the sky caused by the Earth's rotation. Photographed in California, USA.
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