The UK-led Beagle-2 Mars lander, which hitched a ride on ESA's Mars Express mission and was lost on Mars since 2003, has been found in images taken by a NASA orbiter at the Red Planet.
Beagle-2 was released from its mother craft on 19 December 2003 and was due to land six days later, but nothing was heard from the lander after its scheduled touchdown, and searches by Mars Express and NASA's Mars Odyssey mission were fruitless.
Now, over a decade later, the lander has been identified in images taken by the high-resolution camera on NASA's Mars Reconnaissance Orbiter. The lander is seen partially deployed on the surface, showing that the entry, descent and landing sequence worked and it did indeed successfully land on Mars on Christmas Day 2003.
Alvaro Gimenez, ESA's Director of Science and Robotic Exploration, said that they are very happy to learn that Beagle-2 touched down on Mars. The dedication of the various teams in studying high-resolution images in order to find the lander is inspiring.
Rudolf Schmidt, ESA's Mars Express project manager at the time, said that not knowing what happened to Beagle-2 remained a nagging worry and understanding now that Beagle-2 made it all the way down to the surface is excellent news.
The high resolution images were initially searched by Michael Croon, a former member of the Mars Express operations team at ESA's Space Operations Centre, ESOC, in Darmstadt, Germany, working in parallel with members of the Beagle-2 industrial and scientific teams.
The small size of Beagle-2 - less than 2 m across when fully deployed - meant this was a painstaking endeavour, right at the limit of the resolution of cameras in orbit around Mars.
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After the identification of potential counterparts to Beagle-2 in the expected landing of Isidis Planitia, a large impact basin close the martian equator, further images were obtained and analysed by the camera team, the Beagle-2 team and NASA's Jet Propulsion Laboratory.
The images show the lander in what appears to be a partially deployed configuration, with only one, two or at most three of the four solar panels open, and with the main parachute and what is thought to be the rear cover with its pilot/drogue parachute still attached close by.
The size, shape, colour and separation of the features are consistent with Beagle-2 and its landing components, and lie within the expected landing area at a distance of about 5 km from its centre.