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Sep 18, 2015 06:00 PM ET // Elizabeth Howell
The big moons of Jupiter may have oceans underground. Although they are driven by the same mechanism, their nature can be radically different.
Sep 16, 2015 11:45 AM ET // Irene Klotz
By measuring tiny wobbles in Enceladus' orbit, scientists have figured out that Enceladus has a giant ocean.
Sep 8, 2015 01:46 PM ET // Mike Wall,
NASA is exploring the idea of putting a lander on Europa to look for signs of life.
Sep 2, 2015 03:00 PM ET // Mike Wall,
An icy moon of Saturn hangs against the face of its giant parent planet in a breathtaking new image captured by NASA's Cassini spacecraft.
Aug 19, 2015 01:00 PM ET // Irene Klotz
Scientists have long puzzled over how gas planets like Jupiter and Saturn got to be so big -- now they think pebbles may be the answer.
Aug 16, 2015 05:57 PM ET // Ian O'Neill
As we rapidly approach Cassini's thrilling final stage of its mission, the list of 'final' events is gradually shrinking. Next on the NASA spacecraft's final list is Dione -- coming within 295 miles of the Saturn moon's surface on Monday.
Jul 31, 2015 05:03 PM ET // Ian O'Neill
In new observations beamed back from Cassini, Saturn's icy moon Tethys has decided to show off its mysterious stripes.
Jul 29, 2015 11:53 AM ET // Elizabeth Howell
For the next six months, NASA's Saturn-orbiting Cassini spacecraft will get its final look at two icy moons -- one famous and one not so well-known -- before preparing for mission's end in 2017.
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