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Results of ten Venus years of cloud tracking by Venus Express

Posted by Emily Lakdawalla on 2013/08/29 10:55 CDT | 4 comments

What Venus Express' Visual Monitoring Camera images of Venus have taught us about the motions of Venus' atmosphere.

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Probing Titan's Atmosphere

Posted by Sarah Hörst on 2013/08/26 03:14 CDT | 11 comments

By now I hope that everyone has seen some of the spectacular images of the Saturn system (and especially Titan!) from the Cassini-Huygens mission. However, the measurements that often make my heart race are taken by instruments that reveal Titan in ways that our eyes cannot see.

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Updates on Curiosity from Ken Herkenhoff: Embarking for Mount Sharp (sols 326-372)

Posted by Ken Herkenhoff on 2013/08/23 12:07 CDT | 1 comments

United States Geological Survey scientist Ken Herkenhoff posts regular updates on the Curiosity science team's plans for the rover on Mars.

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Caution: Spacecraft Under Construction
Visiting JPL's high bay clean room with NASA Administrator Charles Bolden

Posted by Mat Kaplan on 2013/08/20 10:39 CDT | 1 comments

Join Emily Lakdawalla and Mat Kaplan inside JPL's High Bay 1, where two Earth-revealing missions are being readied for launch.

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Movie of Phobos and Deimos from Curiosity: super cool and scientifically useful

Posted by Emily Lakdawalla on 2013/08/16 05:01 CDT | 5 comments

Yesterday, the Curiosity mission released the video whose potential I got so excited about a couple of weeks ago: the view, from Curiosity, of Phobos transiting Deimos in the Martian sky. In this post, Mark Lemmon answers a bunch of my questions about why they photograph Phobos and Deimos from rovers.

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Pluto on the Eve of Exploration by New Horizons: Is there an ocean, or not?

Posted by Emily Lakdawalla on 2013/08/02 08:00 CDT | 5 comments

Does Pluto have an ocean under its ice? If it doesn't now, did it ever have one? How will we know?

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Happy 32! Happy New Mars Year!

Posted by Emily Lakdawalla on 2013/07/31 01:45 CDT | 4 comments

They're too far apart to have a party, but today Curiosity and Opportunity could have rung in the New Mars Year. Today Mars reached a solar longitude of zero degrees and the Sun crossed Mars' equator, heralding the arrival of spring in the northern hemisphere and autumn in the southern hemisphere.

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Pluto on the Eve of Exploration by New Horizons: A problem of cartography

Posted by Emily Lakdawalla on 2013/07/30 05:44 CDT | 6 comments

Last Thursday at the Pluto Science Conference there was a surprising and interesting talk by Amanda Zangari, who pointed out a serious problem with Pluto cartography.

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Pluto on the Eve of Exploration by New Horizons: Small moons, dust, surfaces, interiors

Posted by Emily Lakdawalla on 2013/07/24 09:04 CDT | 5 comments

My roundup from notes on the day's presentations on dust in the Pluto system and the surfaces and interiors of Pluto and Charon.

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Planetary Geomorphology Image of the Month: Water tracks on Earth and Mars

Posted by Emily Lakdawalla on 2013/07/18 09:57 CDT | 3 comments

The International Association of Geomorphologists' "planetary geomorphology image of the month," contributed by Joe Levy, features water tracks on Earth and compares them to recurring slope lineae on Mars.

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Stationkeeping in Mars orbit

Posted by Emily Lakdawalla on 2013/06/27 10:55 CDT | 10 comments

It had never occurred to me to think about geostationary satellites in Mars orbit before reading a new paper by Juan Silva and Pilar Romero. The paper shows that it takes a lot more work to maintain a stationary orbit at an arbitrary longitude at Mars than it does at Earth.

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How radar really works: The steps involved before getting an image

Posted by Alessondra Springmann on 2013/06/24 02:10 CDT | 3 comments

Arecibo Observatory is known for its 1000-foot diameter telescope and its appearances in Goldeneye and Contact. Aside from battling Bond villains and driving red diesel Jeeps around the telescope (grousing at the site director about the funding status of projects is optional), several hundred hours a year of telescope time at Arecibo go toward radar studies of asteroids.

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A serendipitous observation of tiny rocks in Jupiter's orbit by Galileo

Posted by Emily Lakdawalla on 2013/05/17 09:54 CDT | 3 comments

A look at an older paper describing Galileo's possible sighting of individual ring particles orbiting Jupiter as companions to its inner moon Amalthea.

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Doing a science on Titan

Posted by Sarah Hörst on 2013/05/15 11:55 CDT | 12 comments

A tale from the scientific trenches: laboratory work to simulate Titan's rich atmosphere.

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Planetary Society Hangout: A Day in the Life of the Opportunity Rover with Emily Dean
Thursday, May 9, at noon PDT/1900h UTC

Posted by Casey Dreier on 2013/05/09 02:20 CDT | 1 comments

Thursday, May 9th, at noon PDT/3pm EDT/1900h UTC, we are joined by Emily Dean, who works on the camera team for the Opportunity rover on Mars.

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Planetary Society Weekly Hangout (Special Time): MESSENGER at Mercury with Larry Nittler, Fri May 3 5pm PDT / midnight UTC

Posted by Emily Lakdawalla on 2013/05/02 07:00 CDT | 2 comments

Note the special time! In this week's Planetary Society hangout at 5pm PDT / midnight UTC, I'll talk with MESSENGER deputy principal investigator Larry Nittler about what MESSENGER has accomplished in its prime and extended missions at Mercury, and what it stands to do if awarded a mission extension.

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Pluto's seasons and what New Horizons may find when it passes by

Posted by Emily Lakdawalla on 2013/05/02 03:42 CDT | 5 comments

New Horizons might see a Pluto with a northern polar cap, a southern polar cap, or both caps, according to work by Leslie Young.

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2011 HM102: A new companion for Neptune

Posted by Alex Parker on 2013/04/30 04:20 CDT | 2 comments

This month my latest paper made it to print in the Astronomical Journal. It's a short piece that describes a serendipitous discovery that my collaborators and I made while searching for a distant Kuiper Belt Object for the New Horizons spacecraft to visit after its 2015 Pluto flyby.

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An Amazing Evening for Planetary Defense
Join us via Planetary Radio and complete video coverage.

Posted by Mat Kaplan on 2013/04/23 07:12 CDT | 1 comments

Bill Nye, Bruce Betts, Mat Kaplan, Meteorite Man Geoffrey Notkin and stars of planetary science at the Planetary Defense Conference public event in Flagstaff.

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