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European probe plants thermometer on comet

This image released by the European Space Agency ESA Thursday Nov. 13, 2014 was taken by Philae's down-looking descent ROLIS imager when it was about 40 meters (131 feet) above the surface of Comet 67P/Churyumov-Gerasimenko Wednesday.  It shows that the surface of the comet is covered by dust and debris ranging from mm to metre sizes The large block in the top right corner is 5 m in size. In the same corner the structure of the Philae landing gear is visible.  The lander scored a historic first Wednesday, touching down on comet 67P/Churyumov-Gerasimenko after a decade-long, 6.4 billion-kilometer (4 billion-mile) journey through space aboard its mother ship, Rosetta. The comet is streaking through space at 41,000 mph (66,000 kph) some 311 million miles (500 million kilometers) from Earth.  (AP Photo/Esa,Rosetta,Philae)
This image released by the European Space Agency ESA Thursday Nov. 13, 2014 was taken by Philae's down-looking descent ROLIS imager when it was about 40 meters (131 feet) above the surface of Comet 67P/Churyumov-Gerasimenko Wednesday. It shows that the surface of the comet is covered by dust and debris ranging from mm to metre sizes The large block in the top right corner is 5 m in size. In the same corner the structure of the Philae landing gear is visible. The lander scored a historic first Wednesday, touching down on comet 67P/Churyumov-Gerasimenko after a decade-long, 6.4 billion-kilometer (4 billion-mile) journey through space aboard its mother ship, Rosetta. The comet is streaking through space at 41,000 mph (66,000 kph) some 311 million miles (500 million kilometers) from Earth. (AP Photo/Esa,Rosetta,Philae) This image released by the European Space Agency ESA Thursday Nov. 13, 2014 was taken by Philae's down-looking descent ROLIS imager when it was about 40 meters (131 feet) above the surface of Comet 67P/Churyumov-Gerasimenko Wednesday. It shows that the surface of the comet is covered by dust and debris ranging from mm to metre sizes The large block in the top right corner is 5 m in size. In the same corner the structure of the Philae landing gear is visible. The lander scored a historic first Wednesday, touching down on comet 67P/Churyumov-Gerasimenko after a decade-long, 6.4 billion-kilometer (4 billion-mile) journey through space aboard its mother ship, Rosetta. The comet is streaking through space at 41,000 mph (66,000 kph) some 311 million miles (500 million kilometers) from Earth. (AP Photo/Esa,Rosetta,Philae)

BERLIN (AP) – The European Space Agency says its Philae lander is doing well and has succeeded in planting a thermometer in the comet where it touched down this week.

The agency said Friday that scientists have received a steady stream of data from the lander, which on Wednesday became the first spacecraft to touch down on a comet. However, their job is complicated by the fact that Philae landed next to a cliff that is blocking sunlight from its solar panels.

Planting a thermometer in the surface was Philae’s first so-called “mechanical operation” but ESA says it will hold off on any more for now. The lander’s primary battery only has power for another day or so and scientists are contemplating realigning it so that the solar panels can charge the craft.