This view of Neptune, as seen through the Hubble Space Telescope, is helping planetary scientists gain some insight into the weird and wild weather that is a hallmark of the eighth planet from the sun. On Neptune, winds blow at 1500 kilometres per hour and huge storms - some the size of Earth itself - come and go regularly. It is a mystery what is driving Neptune's weather since the Sun, which drives Earth's weather, is 900 times dimmer there than on Earth.