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Rosetta end-of-mission plans: Landing site, time selected

Posted by Emily Lakdawalla on 2016/07/26 03:13 CDT | 2 comments

ESA's comet-chasing Rosetta spacecraft is nearing the end of its mission. Last week, ESA announced when and where Rosetta is going to touch down. And tomorrow, it will forever shut down the radio system intended for communicating with the silent Philae lander.

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What's up in the solar system, July 2016 edition: Juno to enter orbit, NASA missions all extended

Posted by Emily Lakdawalla on 2016/07/01 03:49 CDT | 2 comments

Highlights this month include the impending arrival of Juno at Jupiter, the approval of extended missions for all of NASA's solar system spacecraft, and public data releases from Rosetta, New Horizons, and Cassini.

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What's up in the solar system, June 2016 edition: Juno approaches Jupiter

Posted by Emily Lakdawalla on 2016/06/01 05:23 CDT | 5 comments

Your monthly roundup of the adventures of the 20+ robots exploring our solar system.

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A feast of new OSIRIS photos from comet 67P

Posted by Emily Lakdawalla on 2016/05/11 04:19 CDT | 2 comments

Last week, the Rosetta mission released a large quantity of science data to the worldwide public, including photos from the mission's close observation phase and the Philae landing.

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Opposition surge comet

Posted by Emily Lakdawalla on 2016/04/12 10:43 CDT | 1 comments

Today, the Rosetta OSIRIS team's Image of the Day is this highly unusual view of the comet with the Sun very nearly behind the spacecraft.

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What's up in solar system exploration: April 2016 edition

Posted by Emily Lakdawalla on 2016/04/04 10:58 CDT | 2 comments

This month (actually, today), Cassini had a relatively close flyby of Titan, and New Horizons will observe a very distant Kuiper belt object named 1994 JR1. Akatsuki has just fine-tuned its orbit around Venus, and Hayabusa2 has begun an 800-hour ion engine thrusting phase to steer it toward near-Earth asteroid Ryugu.

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What's up in solar system exploration: March 2016 edition

Posted by Emily Lakdawalla on 2016/02/29 02:45 CST | 4 comments

Welcome to my monthly inventory of the 20-plus spacecraft actively exploring our solar system. Highlights of this month include the impending launch of the ExoMars Trace Gas Orbiter and Schiaparelli lander, currently planned for March 14, and the resumption of regular VMC Mars images by Mars Express.

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Worth the wait: First public release of Rosetta science camera images of comet 67P

Posted by Emily Lakdawalla on 2015/12/17 12:30 CST | 4 comments

Finally! It has been a long wait, but so worth it: the Rosetta OSIRIS science camera team has delivered the first pile of data from the rendezvous with comet 67P to ESA's Planetary Science Archive. I have spent a good chunk of the last three days playing with the data, and it's spectacular.

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A Rosetta OSIRIS picture of comet 67P that's only hours old

Posted by Emily Lakdawalla on 2015/12/11 10:22 CST | 2 comments

ESA announced today a new website at which the OSIRIS team will now be releasing images on a regular basis -- at least one per week -- and they will be recent. Even better news, all OSIRIS data taken through September 16, 2014 has been handed to ESA and its release is expected next week.

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DPS 2015: A little science from Rosetta, beyond perihelion

Posted by Emily Lakdawalla on 2015/11/18 07:47 CST | 2 comments

Updated numbers for physical properties of the comet, and a few interesting images of surface features and surface changes on Churyumov-Gerasimenko.

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ESA mission updates

Posted by Emily Lakdawalla on 2015/11/04 07:15 CST

There have been several important pieces of news about European missions in the last month: Rosetta's fate has been determined; ExoMars Trace Gas Orbiter's launch is slightly delayed; and they have selected a landing site for the ExoMars rover.

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How the duck got its neck: Rapid temperature changes from self-shadowing may explain 67P's unusual activity and shape

Posted by Emily Lakdawalla on 2015/09/11 11:04 CDT | 5 comments

When Rosetta approached comet Churyumov-Gerasimenko last summer, both its shape and its activity were surprising. It looked like two comets welded together at a skinny neck. A new paper explains how the neck may be steepening itself.

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Aluminum Shapemodel of Comet 67P

Posted by Mattias Malmer on 2015/09/04 07:55 CDT | 4 comments

Mattias Malmer describes his MacGyver-esque process in creating a homemade aluminum version of 67P/Churyumov–Gerasimenko.

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ESA's cool new interactive comet visualization tool based on amateur imaging work with open data

Posted by Emily Lakdawalla on 2015/08/13 01:49 CDT | 2 comments

A terrific new visualization tool for comet 67/P Churyumov-Gerasimenko demonstrates the value of sharing mission image data with the public. The browser-based tool lets you spin a simulated 3D view of the comet. It began with a 3D model of the comet created not by ESA, but by a space enthusiast, Mattias Malmer.

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What's up in solar system exploration: August 2015 edition

Posted by Emily Lakdawalla on 2015/08/10 07:31 CDT | 5 comments

I'm back from two weeks' vacation, so it's time to catch up on the status of all our intrepid planetary missions, from Akatsuki to the Voyagers and hitting the Moon, Mars, asteroids, comets, and Saturn in between.

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New Robotic Spacecraft Posters

Posted by Bill Dunford on 2015/08/06 12:20 CDT | 2 comments

Another round of posters to celebrate historic planetary missions.

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Two more brief mission updates: Philae makes contact; Akatsuki to perform course correction

Posted by Emily Lakdawalla on 2015/07/10 09:38 CDT | 6 comments

As a followup to yesterday's post about Dawn, Juno, and OSIRIS-REx, I have updates on two more missions. With this post, I hope to have cleared the decks so that I can focus on Pluto for the next week!

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More than 2000 Rosetta NavCam images for your enjoyment

Posted by Emily Lakdawalla on 2015/07/07 02:10 CDT | 2 comments

Last week, the European Space Agency released the first set of images from Rosetta's navigational camera, or NavCam, from the phase of the mission that followed the Philae landing. That makes more than 3500 NavCam images that have been released from the comet phase of the mission.

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Philae is awake! What's next for the comet lander's scientific mission?

Posted by Emily Lakdawalla on 2015/06/17 05:16 CDT | 5 comments

I woke up early Sunday morning to the dramatic news: Philae is back! With a few days to consider the telemetry, the Philae team is now talking about the science they hope to do. With comet Churyumov-Gerasimenko approaching perihelion in August, it's going to be an exciting ride.

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Unseen latitudes of comet Churyumov-Gerasimenko -- revealed!

Posted by Emily Lakdawalla on 2015/05/15 12:11 CDT | 2 comments

A recent Rosetta image has revealed a good part of the comet's previously hidden southern terrain to the public for the first time.

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