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Update: Phobos and Jupiter and its moons!

Posted by Emily Lakdawalla on 2011/06/20 03:53 CDT

Remember that neat picture and movie of Phobos passing by Jupiter that I posted last week? Several people asked me where Jupiter's moons were, and I just assumed that they weren't visible. I was wrong; Mars Express spotted Jupiter's moons along with the planet and Mars' moon!

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Galileo's still producing discoveries: A magma ocean within Io!

Posted by Jason Perry on 2011/05/13 11:44 CDT

A fresh report was published online yesterday in Science Express on the discovery of a magma ocean beneath the surface of Io. Big news! This is a paper I've been looking forward to seeing for more than year and half.

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Spotting Jupiter's Moons...with a Solar Telescope!?

Posted by Emily Lakdawalla on 2011/04/06 12:27 CDT

I was astounded to learn this morning that SOHO can not only see Jupiter, it can actually resolve Jupiter's moons (at least its two outer ones) as points of light separate from their planet!

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Mercury: a moon-scale body

Posted by Emily Lakdawalla on 2011/03/17 06:15 CDT

As I wait for the MESSENGER Mercury Orbit Insertion webcast to start, I thought I'd fiddle with some images to point out that Mercury is a bridge between the scales of planets and the scales of moons.

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LPSC 2011: Day 4: Ted Stryk on icy moons and The Moon

Posted by Ted Stryk on 2011/03/17 11:22 CDT

Here are Ted Stryk's notes from the sessions he attended in the afternoon of Thursday, March 10, at the 42nd Lunar and Planetary Science Conference.

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LPSC 2011: Kirby Runyon on Mars, the Moon, Hartley 2, and Ganymede

Posted by Kirby Runyon on 2011/03/15 01:57 CDT

Kirby Runyon, a second-year grad student at Temple University, offered to send me some writeups of selected presentations from last week's Lunar and Planetary Science Conference, and I enthusiastically agreed.

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LPSC 2011: Wanted: Pioneer 10 & 11 digital data

Posted by Emily Lakdawalla on 2011/03/11 01:39 CST

This is both a Lunar and Planetary Science Conference (LPSC) update and a public service announcement. Ted Stryk has been working for years to locate the original Pioneer 10 and 11 image data from the Jupiter and Saturn encounters.

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Report from the 2011 New Horizons Science Team Meeting

Posted by Ted Stryk on 2011/01/24 01:01 CST

The annual New Horizons Science Team Meeting was held last week at NASA's Ames Research Center.

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Field trip to Piton

Posted by Rosaly Lopes on 2010/10/07 05:22 CDT

Rosaly Lopes relates her time at a workshop in Piton.

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Exposing Io's true colors

Posted by Jason Perry on 2010/08/20 05:15 CDT

Thanks to its active volcanic activity and sulfur-rich surface, Io is one of the most colorful worlds yet seen in the Solar System, save the Earth of course

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400 Years of the Galilean Satellites

Posted by Emily Lakdawalla on 2010/01/07 03:34 CST

It was 400 years ago today that Galileo discovered smaller planets attending the planet Jupiter.

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Aloha, Io

Posted by John Spencer on 2009/06/08 01:49 CDT

Taking a look at Jupiter's moon, Io, from Hawaii.

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Frame a Pluto portrait

Posted by Emily Lakdawalla on 2008/04/07 01:27 CDT

As New Horizons continues its journey (it's now approaching the orbital distance of Saturn, though it's very far from that planet in space), the mission is taking advantage of the recent experience with the Jupiter flyby to plan out the science operations for the Pluto-Charon encounter.

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New Horizons sees Io erupting!

Posted by Emily Lakdawalla on 2007/02/27 11:15 CST

There were two new pictures posted on the New Horizons Science Operations Center website this morning, of Io, and if you enhance the images a bit, there are two clear volcanic plumes visible on the limb -- Tvashtar and Prometheus are active!

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New Horizons Jupiter Encounter Timeline

Posted by Emily Lakdawalla on 2007/01/31 07:00 CST

A year after its launch on January 19, 2006, New Horizons is fast closing in on Jupiter, the first target on its near decade-long journey. On February 28 the spacecraft will approach to within 2.3 million kilometers (1.4 million miles) of Jupiter before speeding along on to its way to the edge of the solar system.

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New Horizons' raw images are now online

Posted by Emily Lakdawalla on 2007/01/23 04:58 CST

I got an email from John Spencer this morning telling me that the mission had posted all of New Horizons' most recently acquired images on the mission website.

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New Horizons is targeting Jupiter!

Posted by Emily Lakdawalla on 2007/01/10 03:48 CST

New Horizons' Jupiter encounter is officially underway!

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Europa on Earth: The Sulfur Springs of Borup Fiord Pass, Ellesmere Island

Posted by Stephen Grasby on 2006/07/19 04:00 CDT

From June 21 to July 6, 2006, a four-person team traveled to Borup Fiord Pass to perform geological field studies to compare with satellite images.

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