A closer look
Venus's atmosphere spins violently at hurricane speeds, but somehow, an ocean-sized wave stands completely still in its toxic clouds. Japan's Akatsuki probe spotted a massive, bow-shaped thermal anomaly stretching 10,000 kilometers from pole to pole. This isn't a storm; it is an atmospheric gravity wave. The ultra-dense winds crash into the Aphrodite Terra mountain range on the planet's surface, forcing the air violently upward. This creates a stationary ripple in the atmosphere that stubbornly resists the 350-kilometer-per-hour super-rotation of the surrounding clouds.
