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Stories, updates, insights, and original analysis from The Planetary Society.

A Tour of 67P...

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

More jets from Rosetta's comet!

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.

A landing site for Philae, but it's not going to be easy

This morning, the European Space Agency announced the selection of a landing site for little Philae on the head of comet Churyumov-Gerasimenko. Although a primary site has been selected, landing Philae successfully is going to be tough, and the mission is now working to manage people's expectations.

Finding my way around comet Churyumov-Gerasimenko

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.

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

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.

Rosetta's Big Day

Stuart Atkinson muses on the difference between the Europe of today and the Europe of a century ago in the context of Rosetta's momentous arrival at comet Churyumov-Gerasimenko.

Rendezvous with a crazy world

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.

Today's the day Rosetta arrives at a comet!

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.

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

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.

Rosetta update: Long journey to a comet nearly complete

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.

A right old comet kerfuffle…

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

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