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“Moons”

Jan 14, 2016 01:12 AM ET // Ian O'Neill
On Thursday (Jan. 14), the European Space Agency's Mars Express orbiter is set to pay Phobos a visit in what will be the mission's closest flyby of the Martian moon this year.
Dec 23, 2015 12:40 PM ET // Jason Major
After more than eleven years orbiting Saturn, NASA's Cassini spacecraft has made its last-ever targeted flyby of Enceladus, the big little moon that has intrigued scientists with its southern ice geysers since Cassini first spotted them in 2005.
Dec 18, 2015 03:27 PM ET // Irene Klotz
NASA’s Cassini spacecraft, which has been sailing around the Saturn system for more than 11 years, will make its final close approach to the ocean-bearing moon Enceladus on Saturday.
Dec 17, 2015 11:47 AM ET // Jason Major
It's not in a galaxy far, far away or even another star system -- this alien world is right in our planetary backyard, a mere 900 million miles away in orbit around Saturn.
Dec 15, 2015 07:00 AM ET // Irene Klotz
After Cassini's 'deep-dive' into Enceladus' watery plumes, evidence mounts for life-friendly environments inside the Saturn moon's ocean.
Dec 14, 2015 02:50 PM ET // Ian O'Neill
There are few views in Saturnian orbit that are more satisfying than seeing two or more moons in the same frame -- particularly when they align.
Dec 3, 2015 07:00 AM ET // Elizabeth Howell
Mars' moon, Phobos, is doomed and scientists have some new findings about its possible fate. What else do we know about Phobos?
Nov 10, 2015 06:30 PM ET // Irene Klotz
Scientists have known for some time that Phobos, the larger of Mars’ two small moons, is a victim of gravity, edging closer toward its parent planet.
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