Saturn's Mysterious Hexagon Emerges from Winter Darkness

Space & Earth / Space Exploration

Dec 09, 2009 | 5 / 5 (21) | 18

(PhysOrg.com) -- After waiting years for the sun to illuminate Saturn's north pole again, cameras aboard NASA's Cassini spacecraft have captured the most detailed images yet of the intriguing hexagon shape ...

Cassini closes in on the centuries-old mystery of Saturn's moon Iapetus

Space & Earth / Space Exploration

Dec 10, 2009 | 4.5 / 5 (4) | 0

Extensive analyses and modeling of Cassini imaging and heat-mapping data have confirmed and extended previous ideas that migrating ice, triggered by infalling reddish dust that darkens and warms the surface, ...