03:57The team expected to see that the central part of the comet, its nucleus,
04:02is sort of shaped like a potato, but instead, the images Rosetta sent back resembled more of a rubber duck shape.
04:10It had two lobes, almost as if the two comets had slammed into each other and bonded.
04:17It looked like nothing we had ever examined in the solar system before.
04:22This made landing Feely a bit more complicated.
04:26The complex shape of the comet made for a complex gravity and a strange rotation situation,
04:33which made flying around it very complicated.
04:37There were also craters, cliffs, sinkholes and boulders the size of houses, which had to be taken into account.
04:46Rosetta spent a few weeks analysing the comet, sending back information so the experts could determine where was best to land.
04:53Typically landing sites, for example on Mars, take years to select, so for Feely it happened exceptionally fast.
05:02No lander had attempted to make a soft landing on a comet before, so there was a lot at stake.
05:09Finally, the experts decided on the perfect landing spot for Feely, and the probe was sent down,
05:16and the world held its breath for seven hours to hear if the spacecraft landed successfully.
05:21Touchdown was confirmed at 1703 Central European Time on the 12th of November.
05:30But there was something strange about the data returned.
05:34Soon scientists, flight dynamics specialists and engineers concluded that Feely did not just touch down once on the comet, but three times.
05:45The harpoons that were meant to dig Feely into the comet's surface securely had not fired, and the lander appeared to be rotating after the first touchdown.
05:56And then the lander lifted from the surface, for one hour and fifty minutes.
06:02During that time, it travelled about one kilometre at a speed of 38 centimetres per second.
06:09It then made a smaller, second hop, travelling at about three centimetres per second, and landing in its final resting place seven minutes later.
06:20This left Feely in an awkward angle, but it was still able to conduct its onboard experiments, and send data back down to us here on Earth.
06:30However, the landing spot had limited sunlight, meaning the solar panels could not be charged, and Feely eventually lost power after 57 hours.
06:41In the end, about 80% of the planned science was completed, not bad considering the circumstances.
06:49Meanwhile, Rosetta continued to study the environment of the comet, studying the dust particles which flew off as it became more active on its approach to the Sun, and monitored the changes on the surface.
07:03After 211 days, Rosetta noticed a strange signal. Scientists analysed the data, and realised Feely had woken up, after seven months in hibernation.
07:15Engineers determined that Feely was exposed to sufficient sunlight to heat it to an acceptable operating temperature, and to generate electricity.
07:25This allowed for the experts to home in on the final resting place of Feely, and allow us to say a final goodbye.
07:32After becoming the first spacecraft to orbit a comet, and the first to deploy a lander, Feely, in November 2014,
07:47Rosetta continued to monitor the comet's evolution surviving the harsh environment of the comet for 786 days,
07:56making a few dramatic flybys close to its surface, surviving several unexpected outbursts from the comet, and recovered from two spacecraft safe modes.
08:08After almost two years in operation around the comet, and 12 years in space, Rosetta's own mission would also come to an end on the surface of the comet, with a controlled impact.
08:19Confirmation of the end of the mission arrived at our control centre, at 13.19 Central European summer time, with the loss of Rosetta's signal upon impact.
08:32The descent gave Rosetta the opportunity to study the comet right up until its last moment.
08:38The world may have said goodbye to Rosetta, but its legacy will not be forgotten.
08:44Rosetta changed our view of how the solar system formed, how the planets were made, and gave a glimpse at how life could have begun here on Earth.
08:53Rosetta changed our view of how the planet is.
08:54Rosetta changed our view of how the planet is.
08:55Rosetta changed our view of how the planet is.
08:56Rosetta changed our view of how the planet is.
08:57Rosetta changed our view of how the planet is.
08:58Rosetta changed our view of how the planet is.
08:59Rosetta changed our view of how the planet is.
09:00Rosetta changed our view of how the planet is.
09:01Rosetta changed our view of how the planet is.
09:02Rosetta changed our view of how the planet is.
09:03Rosetta changed our view of how the planet is.
09:04Rosetta changed our view of how the planet is.
09:05Rosetta changed our view of how the planet is.
09:06Rosetta changed our view of how the planet is.
09:07Rosetta changed our view of how the planet is.
09:08Rosetta changed our view of how the planet is.
09:09Rosetta changed our view of how the planet is.
