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Major Moons

We have completed reconnaissance missions to all eight of the planets, and will soon perform surveys of two dwarf planets, Ceres and Pluto. Among the most compelling targets for future flagship missions are the solar system's moons. Can we use Phobos as a base from which to tele-operate Mars missions? Is there prebiotic chemistry or even life within the buried oceans of Europa, Ganymede, or Enceladus, or in the methane-ethane rivers and lakes on Titan? What could we learn about the Kuiper belt by studying Neptune's captured moon Triton? What could human explorers do on our own Moon using technology developed over the last 40 years?

These questions drive interest in future missions among scientists, but it's an uphill battle to sell decisionmakers on the value of expensive missions to objects that are "only" moons. For us to capitalize on the successes of our reconnaissance missions, it is essential to educate the public about the reasons that other worlds' moons are so exciting, and that they are worlds every bit as worthy of study as the planets.

Recent Blog Entries about our Moon, Phobos, Europa, Ganymede, Enceladus, Titan, and Triton

Your Europa Mission Primer of the Day

Posted by Casey Dreier on 2014/04/08 09:35 CDT | 1 comment

Trying to understand NASA's current efforts to explore Europa? Read this excellent piece on the recent, frustrating history to scout out this watery moon of Jupiter.

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Commander Dave Scott's Masursky Lecture from LPSC 2014

Posted by Emily Lakdawalla on 2014/04/04 03:21 CDT | 5 comments

A video of Apollo astronaut David Scott's lecture to the Lunar and Planetary Science Conference. His talk was an absolute treat: funny, educational, engaging, full of joy at his adventure, though at the end, a little angry that we've not sent more humans back. It's well worth 45 minutes of your time.

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NASA's LADEE Spacecraft to Fly Through an Eclipse, Crash into the Lunar Surface on April 21st

Posted by Casey Dreier on 2014/04/04 01:13 CDT | 1 comment

LADEE, NASA's latest robotic lunar spacecraft, will reach its planned end-of-mission on April 21st, when it will crash on the far side of the Moon.

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Fireworks in the Earth's Sky Sent from the Moon: Reflections from LPSC 2014

Posted by Deepak Dhingra on 2014/04/03 07:00 CDT

Deepak Dhingra reports on presentations from this year's Lunar and Planetary Science Conference focusing on how impacts on the Moon have affected Earth.

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Discovery Missions for an Icy Moon with Active Plumes

Posted by Van Kane on 2014/04/02 07:31 CDT | 8 comments

In December, scientists announced the discovery of possible plumes of water being ejected from Jupiters’s moon Europa. If confirmed, Europa would be the second moon with confirmed plumes after Saturn’s moon Enceladus. Two Discovery mission proposals for Enceladus suggest the types of missions that may be proposed for Europa.

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LPSC 2014: Titan's Land of Lakes

Posted by Emily Lakdawalla on 2014/03/31 07:44 CDT | 2 comments

Report from a varied session on Titan's lakes at this year's Lunar and Planetary Science Conference.

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Snapshots of Science from the 2014 Lunar and Planetary Science Conference

Posted by Emily Lakdawalla on 2014/03/25 02:45 CDT | 2 comments

Vignettes from dozens of LPSC talks: GRAIL and LADEE at the Moon; ice and craters and conglomerates and organics and gullies on Mars; polar deposits and volatile elements on Mercury; tectonics on Enceladus; and more, until my brain was so full I could barely speak.

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LPSC 2014: Plate tectonics on another world: Europa

Posted by Emily Lakdawalla on 2014/03/19 01:28 CDT | 7 comments

Simon Kattenhorn and Louise Prockter may finally have found subduction zones on Europa, which would it the only other place in the solar system besides Earth that is known to have active plate tectonics.

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Moonwalking

Posted by Bill Dunford on 2014/03/18 12:42 CDT | 8 comments

Get an astronaut's view into several lunar craters.

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Titan's lakes: The basics

Posted by Emily Lakdawalla on 2014/03/15 10:30 CDT | 7 comments

Since Seth MacFarlane tweeted that this weekend's episode of Cosmos was going to include a segment on lakes on Titan, I thought I'd write a post explaining the basics of Titan lakes.

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