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Brief Philae "Morning After" update: First ÇIVA panorama from the surface

Emily Lakdawalla • November 13, 2014

I'm just getting up to speed on the news from overnight, which is mostly good: Philae remained in contact with the orbiter (which means the CONSERT radar sounding experiment was working), and it's sitting stably on the surface, although it's not anchored in any way. And they released the first ÇIVA image from the ground!

PHILAE HAS LANDED! [UPDATED]

Emily Lakdawalla • November 12, 2014

The landing happened on time just after 16:02 UT today! Philae mission manager Stephan Ulamec said: "Philae is talking to us! The first thing he told us was the harpoons have been fired and rewound. We are sitting on the surface." Those words later turned out not to be true; but we do know at least that Philae survived the landing and is returning good data.

Report from Darmstadt: Philae status and early Rosetta results from DPS

Emily Lakdawalla • November 11, 2014

I'm reporting live from the press room at the European Space Operations Centre in Darmstadt, Germany. There's little news on Philae yet except that its status is good. Meanwhile, Rosetta scientists presented their first early comet results at the Division for Planetary Sciences meeting in Tucson, Arizona, which I watched from afar using Twitter.

Mars Exploration Rovers Update: Opportunity Images Comet, Ducks Storm, Departs Ulysses

A.J.S. Rayl • November 04, 2014

As winds whirled and converged to the west of Endeavour Crater, Opportunity's power dropped dramatically in October, but the Mars Exploration Rover (MER) pressed on. By month's end, the robot field geologist had completed her assignments – including capturing the first close-in shot of a comet from the surface of the Red Planet – and was roving onward through the darkness, driving the mission into the 130th month of what started out more than 10-and-a-half years ago to be a 3-month tour.

Seven Mars spacecraft attempted observations of comet Siding Spring. How did they go?

Emily Lakdawalla • November 03, 2014

It's been two weeks since comet Siding Spring passed close by Mars, and six of the seven Mars spacecraft have now checked in with quick looks at their images of the encounter. I round up all the results.

A feast of comet features from Rosetta at Churyumov-Gerasimenko

Emily Lakdawalla • October 27, 2014

I have been horribly behind in posting images from Rosetta's exploration of comet 67P/Churyumov-Gerasimenko, and that's a shame, because the spacecraft has lately been exploring the comet from a range of only 10 kilometers. From that range, the NavCam gets sub-meter resolution, and we're seeing a menagerie of odd surface features

Rosetta NAVCAM's Shades of Grey

Claudia Mignone • October 27, 2014

What do “light” and “dark” mean for an object like Comet 67P/C-G? Here are some details on how Rosetta's NAVCAM images are taken and displayed to make a wide range of surface features possible.

Herschel observations of Comet Siding Spring initiated by an amateur astronomer

Peter Mattisson • October 22, 2014

The European satellite Herschel acquired images of Comet Siding Spring before its death in 2013 — thanks to an observing proposal from an amateur astronomer!

Status update: All Mars missions fine after Siding Spring flyby

Emily Lakdawalla • October 20, 2014

All seven Mars spacecraft are doing perfectly fine after comet Siding Spring's close encounter with Mars.

Watching Siding Spring's encounter with Mars

Emily Lakdawalla • October 17, 2014

The nucleus of comet Siding Spring passes close by Mars on Sunday, October 19, at 18:27 UTC. Here are links to webcasts and websites that should have updates throughout the encounter.

Field Report from Mars: Sol 3808 — October 10, 2014

Larry Crumpler • October 15, 2014

Opportunity will become a comet flyby mission beginning in mid-October. The comet Siding Spring will zoom past Mars at a distance of about 135,000 km on October 19.

Video Introduction to Comet Siding Spring’s Near Miss at Mars

Bruce Betts • October 13, 2014

On October 19, 2014, Comet Siding Spring will fly very close to Mars. Here’s a 5 minute video introduction to get you up to speed on this planetary near miss, and some suggestions on how to find out more now, during, and after the encounter.

Mars Orbiter Mission shifts orbit to take cover from Siding Spring

Srinivas Laxman • October 09, 2014

With only 10 days remaining until the arrival of Comet Siding Spring at Mars, ISRO has shielded the Mars Orbiter Mission (MOM) from the comet. On Tuesday MOM’s orbit was altered so as to move it behind the Red Planet when the comet arrives. MOM will carry out observations of the comet and its Mars Colour Camera will click images of it.

Comet Siding Spring: Exciting times

Karl Battams • October 06, 2014

We're now less than two weeks away from Comet Siding Spring buzzing ridiculously close to Mars, and the excitement is building - in both good and bad ways...

Preparing for A-MAVEN Science!

Karl Battams • October 03, 2014

How can we use MAVEN to learn about Comet Siding Spring, passing very close by Mars this month?

Mattias Malmer's amazing 3D views of Churyumov-Gerasimenko

Emily Lakdawalla • October 02, 2014

I'm thrilled to be able to share with you all a spectacular set of images of Rosetta's comet, produced from NavCam data by a master space image processing enthusiast.

Philae's landing day announced as Rosetta swings to comet's dark side

Emily Lakdawalla • September 26, 2014

ESA announced today that Philae will be landing on November 12, 2014. What time the landing occurs depends on which landing site they use. If they go to the prime landing site, "site J," Earth should receive word of the successful landing at 16:00 UTC (08:00 PST). If they go to the backup site, "site C," news will reach Earth at about 17:30 UTC (09:30 PST). Mark your calendars!

A Tour of 67P...

Stuart Atkinson • September 23, 2014

Stuart Atkinson takes us on a stunning guided visual tour of Comet 67P/Churyumov–Gerasimenko.

More jets from Rosetta's comet!

Emily Lakdawalla • September 19, 2014

Another lovely view of comet Churyumov-Gerasimenko contains jets. Bonus: Emily explains how to use a flat field to rid these glorious Rosetta NavCam images of faint stripes and specks.

Comet Siding Spring Mars encounter: One Mars Express plan becomes two

ESA Mars Express Team • September 17, 2014

The Mars Express Flight Control Team at ESOC have been actively preparing for the flyby of comet C/2013 A1/Siding Spring on October 19. Initial estimates gave the possibility that Mars Express might be hit by 2 or 3 high-speed particles. Happily, additional observations by ground and space telescopes have shown the risk to be much lower – and perhaps even as low as zero. In today's blog post, the team explain how this (happy!) real-life, real-time development is affecting their preparations for fly-by.

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