Comet-Bouncing Philae Spacecraft Caught On Camera In Newly Enhanced Images

When the Philae lander arrived at its target comet last week, the little spacecraft landed three times in two hours before coming to a rest. While controllers could see this information from data coming in, they didn’t have any photographic proof — until now.

The animation above, an enhancement of images from the orbiting Rosetta spacecraft released late last week, show Philae and its shadow –mid-bounce! — very shortly after landing on Wednesday (Nov. 12). Philae’s first jump lasted nearly two hours before it took off again, flew for another few minutes, and landed in a shady spot where its batteries drained on Friday.

Here’s another cool thing about these images — some of the credit to Philae’s discovery comes through crowdsourcing! This is what the European Space Agency’s Rosetta blog said about who found this:

Credit for the first discovery goes to Gabriele Bellei, from the interplanetary division of Flight Dynamics, who spent hours searching the NAVCAM images for evidence of the landing.

Once the images were published, blog reader John Broughton posted a comment to report that he had spotted the lander in them (thank you, John). There was also quite some speculation by Rosetta blog readers in the comments section, wondering which features might be attributable to the lander. Martin Esser, Henning, and Kasuha in particular were among the first to make insightful observations on the topic, although many others have since joined in.

Last but not least, a careful independent review of the images was made by Mikel Catania from the earth observation division of Flight Dynamics, with the same conclusion. He also made the annotated animation shown here.

This goes to show you that while there is disappointment that Philae is in a long (perhaps permanent) sleep sooner than scientists hoped, data from the spacecraft will continue to be analyzed in the coming months and years. And don’t forget that the orbiting Rosetta spacecraft is in good health and will continue to return data on 67P as it draws closer to the Sun through 2015.

A still of the Philae spacecraft bouncing off Comet 67P/Churyumov–Gerasimenko in an animation of Rosetta spacecraft images. The image was taken Nov. 12, 2014 at 10:35 a.m. EDT (3:35 p.m. UTC). Credit: SA/Rosetta/NAVCAM; pre-processed by Mikel Catania
Elizabeth Howell

Elizabeth Howell is the senior writer at Universe Today. She also works for Space.com, Space Exploration Network, the NASA Lunar Science Institute, NASA Astrobiology Magazine and LiveScience, among others. Career highlights include watching three shuttle launches, and going on a two-week simulated Mars expedition in rural Utah. You can follow her on Twitter @howellspace or contact her at her website.

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