The newly identified atmospheric wave appears to be strengthening, giving scientists a rare chance to watch an unusual feature develop on Saturn. NASA's Hubble Space Telescope has revealed a giant 10-sided pattern encircling Saturn's south pole, giving scientists a rare opportunity to watch an unusual feature develop on another planet. The unusual pattern is actually a huge atmospheric wave embedded in one of Saturn's powerful jet streams. It extends through multiple layers of the atmosphere, showing that it is more than a cloud-level feature. The discovery marks the first time that a large pattern with regular sides has been observed...