inanna: Venus, photographed 11 times by Venus Express, 20th March 2008.
Looking up at the south pole. The terminator (line between night and day) appears to move right; this is actually a result of the movement of the spacecraft. However, if you look closely, the clouds around the pole seem to move relative to the terminator. These images cover (precisely) 4 hours, and Venus’s atmosphere is usually said to rotate in 4 or 5 days (much faster than the turning of the planet itself), so we might expect to see the clouds move 12-15° around the pole during this gif.
From mission day 700. Images have been resized and the disc of the planet brightened.
Image credit: ESA. Animation: AgeOfDestruction.