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Rosetta update: Two close flybys of an increasingly active comet

Emily Lakdawalla • April 21, 2015 • 6

In the two months since I last checked up on the Rosetta mission, the comet has heated up, displaying more and more jet activity. Rosetta completed very close flybys on February 14 and March 28, taking amazing photos. But comet dust is making navigation difficult, so the mission is now keeping a respectful distance from the comet and replanning its future path.

LPSC 2015: Philae at comet Churyumov-Gerasimenko

Emily Lakdawalla • March 18, 2015 • 2

In my first post from the 2015 Lunar and Planetary Science Conference, I discuss the latest work on Philae images, and some cometary polymers.

Adding Churyumov-Gerasimenko to my scale comparison of comets and asteroids

Emily Lakdawalla • March 13, 2015 • 4

Having found a color photo of the comet, I finally added Churyumov-Gerasimenko to my scale comparison of comets and asteroids visited by spacecraft.

An active comet, from a distance

Emily Lakdawalla • February 13, 2015 • 4

Rosetta has closed to within 50 kilometers of Churyumov-Gerasimenko, on its way to a very close, 6-kilometer flyby of the comet tomorrow. To prepare for the flyby, Rosetta traveled much farther away, allowing it to snap these amazing photos of an increasingly active comet from a great distance.

Rosetta shifts from sedate circular orbits to swooping flybys

Emily Lakdawalla • February 10, 2015 • 9

For the period of time before and after the Philae landing, Rosetta was able to orbit the comet close enough that it was in gravitationally bound orbits, circling the comet's center of gravity. As the comet's activity increases, the spacecraft has to spend most of its time farther away, performing occasional close flybys. The first of these is at 6 kilometers, on February 14.

At last! A slew of OSIRIS images shows fascinating landscapes on Rosetta's comet

Emily Lakdawalla • January 26, 2015 • 8

The first results of the Rosetta mission are out in Science magazine. The publication of these papers means that the OSIRIS camera team has finally released a large quantity of closeup images of comet Churyumov-Gerasimenko, taken in August and September of last year. I explain most of them, with help from my notes from December's American Geophysical Union meeting.

Addressing some common questions about Comet Lovejoy

Matthew Knight • January 23, 2015 • 1

Lowell Observatory's Matthew Knight addresses several points of confusion that have repeatedly come up in the coverage of Comet Lovejoy.

Pretty Picture: Comet Lovejoy

Adam Block • January 20, 2015 • 1

Astrophotgrapher Adam Block shares an image of Comet Lovejoy, which is currently visible with binoculars.

New Churyumov-Gerasimenko Shapemodel!

Mattias Malmer • December 12, 2014 • 1

Mattias Malmer shares his latest shape model of Comet 67P/Churyumov–Gerasimenko, created using data from the Rosetta spacecraft.

Remember Comet Siding Spring? Mars Orbiter Mission got photos, too

Emily Lakdawalla • November 19, 2014

A set of photos released by Mars Orbiter Mission last week completes the set of Mars spacecraft observations of the comet. Now we wait for science results!

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