Hubble spots unusual wave at Saturn's south pole

NASA says Hubble has detected a rare ten-sided wave circling Saturn's south pole, a feature scientists haven't seen before. This new pattern appears to be strengthening, giving astronomers a chance to watch a giant atmospheric change in real time. Saturn's north pole already has a famous hexagonal jet stream, but this southern pattern is new. The discovery comes as Saturn enters opposition, making it especially visible in the night sky.

• Hubble found a ten-sided wave at Saturn's south pole
• The feature is new and appears to be growing
• Saturn's north pole already has a six-sided jet stream
• Saturn will be especially visible in October