Riding the fury of Dione

He flicked closed the filter on his helmet, unbound the tether that was holding him to the spacecraft and pushed off.  It took several hours before the moon below started to grow in size.  He spent the time checking his equipment, listening to an eclectic mix of music on his helmet media system.  As the surface of the moon rushed towards him he started to feel the thrill – maybe he had miscalculated – he no longer had enough fuel left to halt his drop to the surface. Then he felt the turbulance and looked down.  He saw a white-out.  The ice volcano below had started to erupt.  With a whoop he unclipped the board on his back, attached it securely to his boots and prepared to ride the Dione eruption back into orbit.

Dr Bonnie Buratti, of NASA JPL, has announced that the surface of Dione, an ice moon of Saturn, has features that suggest it is still undergoing geological activity.  Banding and areas with a low level of impact crater disturbance point towards geological activity similar to sister moon Enceladus.  See a news article here: http://www.bbc.co.uk/news/science-environment-17440136  Visit the NASA Cassini mission here: www.nasa.gov/cassini

James.

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