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Finding my way around comet Churyumov-Gerasimenko

Posted by Emily Lakdawalla on 2014/08/15 12:30 CDT | 26 comments

Rosetta has nearly completed its first funky three-cornered orbit in front of the comet. Each day we're getting views of the nucleus from more directions. I step you through Churyumov-Gerasimenko's geography.

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The Planetary Society Applauds ESA for Rosetta's Successful Comet Rendezvous

Posted by Jennifer Vaughn on 2014/08/06 05:28 CDT | 1 comment

The Planetary Society congratulates the European Space Agency on its Rosetta spacecraft arriving at comet 67P/Churyumov-Gerasimenko. Rosetta is the first spacecraft to orbit a comet.

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Rendezvous with a crazy world

Posted by Daniel Fischer on 2014/08/06 01:27 CDT | 1 comment

Beaming scientists all around, spectacular images on large TV screens, and the best - or at least most exciting - yet to come: such was the extraordinary scene at the European Space Operations Centre in Darmstadt, Germany, today as the European Space Agency's Rosetta spacecraft reached its cometary destination.

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"We're at the comet!" Rosetta has arrived at comet 67P

Posted by Emily Lakdawalla on 2014/08/06 04:58 CDT | 9 comments

After a journey of more than a decade, Rosetta has finally arrived at comet 67P Churyumov-Gerasimenko. Confirmation of the successful rocket firing came at about 9:30 UTC via a webcast from ESA's Operations Centre in Darmstadt, Germany.

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Today's the day Rosetta arrives at a comet!

Posted by Emily Lakdawalla on 2014/08/05 11:15 CDT | 2 comments

In less than a day, Rosetta will officially arrive, becoming the first spacecraft ever to orbit a comet! Watch an ESA Livestream of the arrival, and check out the latest photos.

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A new angle on Churyumov-Gerasimenko brings circular features into focus

Posted by Emily Lakdawalla on 2014/08/04 10:23 CDT | 4 comments

It's just two days now until Rosetta arrives in its initial 100-kilometer "orbit" of comet Churyumov-Gerasimenko, and the latest view from Rosetta's NavCam is fascinating. Circular features on the comet remind me of Tempel 1 as seen by Deep Impact and Stardust.

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[UPDATED] New Rosetta images show comet's craggy shape

Posted by Emily Lakdawalla on 2014/08/02 09:44 CDT | 1 comment

A shift in position has brought shadows into view from Rosetta, outlining scarps and ridges on Churyumov-Gerasimenko.

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New Rosetta view of the comet - and a comparison to other comets

Posted by Emily Lakdawalla on 2014/07/31 03:02 CDT | 8 comments

Rosetta's view of the comet is getting better and better. Today they released a new image from the high-resolution OSIRIS camera, and it's a very fresh one, taken only two days ago. Distinct features are coming into view. And it's finally detailed enough for me to compare it to the five other comets we've visited in the past.

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Rosetta update: Long journey to a comet nearly complete

Posted by Emily Lakdawalla on 2014/07/29 01:40 CDT | 4 comments

A journey of nearly a decade is almost over. Rosetta is making its final approach to comet 67P/Churyumov-Gerasimenko, and the comet's strange shape is beginning to come into focus. As of today, the spacecraft is only 2000 kilometers away from the comet, and 8 days away from arrival.

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A right old comet kerfuffle…

Posted by Stuart Atkinson on 2014/07/18 12:02 CDT | 16 comments

A European space enthusiast, children's author, and volunteer astronomy outreach worker asks for more images from Rosetta.

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Quick Rosetta update: Churyumov-Gerasimenko is a contact binary!

Posted by Emily Lakdawalla on 2014/07/15 08:42 CDT | 17 comments

I could not wait to post these amazing new images of comet Churymov-Gerasimenko from Rosetta. The nucleus of the comet is clearly a contact binary -- two smaller (and unequally sized object) in close contact.

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Rosetta’s comet is starting to take shape

Posted by Jason Davis on 2014/07/03 12:55 CDT

A new animation of 67P/Churyumov-Gerasimenko captured by the Rosetta spacecraft shows the comet rotating.

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Rosetta completes another rocket burn, spies decreasing activity on comet

Posted by Emily Lakdawalla on 2014/06/19 10:42 CDT

Rosetta has now completed its three largest rendezvous burns as it approaches ever closer to comet 67P/Churyumov-Gerasimenko. Beginning on July 2, Rosetta will now conduct weekly burns, through August 6. Meanwhile, the cometary activity of April and May has quieted again, leaving the comet looking smaller than it did before.

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Pretty pictures: Rosetta's comet is now acting like one!

Posted by Emily Lakdawalla on 2014/05/15 10:17 CDT | 5 comments

New photos from ESA's comet-chaser show its destination comet, 67P/Churyumov-Gerasimenko, developing a coma.

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Intro Astronomy 2014. Class 10: Trans Neptunian Objects including Pluto, KBOs, Comets

Posted by Bruce Betts on 2014/04/18 06:42 CDT

Explore the worlds beyond Neptune including Pluto, Kuiper Belt Objects and comets in this video of class 10 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

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Comet spotted! Rosetta's first sight of Churymov-Gerasimenko since wakeup

Posted by Emily Lakdawalla on 2014/03/27 09:58 CDT | 2 comments

Rosetta has turned on its cameras and sighted its comet for the first time since waking from hibernation. Next activity: waking the Philae lander.

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The Very Large Telescope sights Rosetta's comet target, sees activity beginning

Posted by Emily Lakdawalla on 2014/03/10 02:18 CDT

Rosetta's comet target, 67P/Churyumov-Gerasimenko, has emerged from behind the Sun as seen from Earth, and the Very Large Telescope has photographed it. The new images show that cometary activity has already begun as Rosetta approaches for its August rendezvous.

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Cometary Science at EPSC

Posted by Geraint Jones on 2013/09/26 05:02 CDT

Recently, almost a thousand researchers gathered in London for Europe’s annual meeting of planetary scientists. Here's a report from one session on cometary science.

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Rosetta has entered its long sleep

Posted by Emily Lakdawalla on 2011/06/14 12:25 CDT

One big space event that I missed while I was on vacation was Rosetta's entry into hibernation. Rosetta is the biggest interplanetary spacecraft that has been launched by ESA, and it has the groundbreaking goal of entering orbit around a comet and dropping a lander onto it.

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