Mankind's first-ever probe of a comet found traces of organic molecules and a surface much harder than imagined, scientists said Tuesday of initial sample data from robot lab Philae. Philae fell asleep on comet 67P/Churyumov-Gerasimenko on Saturday, having run out of onboard battery power after 60 hours of prodding and probing an object zipping towards the Sun at 18 kilometres (11 miles per second).
The lander control centre in Cologne, operated by German Aerospace Center (DLR), said Philae had uncovered much about the comet in spite of a rough touchdown in a less-than-perfect spot. "We are well on our way to achieving a greater understanding of comets," Ekkehard Kuhrt, project scientific director, said in a statement. "Their surface properties appear to be quite different than was previously thought." Among the most anticipated data from Philae had been chemical analysis of a drill sample which scientists hoped would shed light on the origins of the Solar System 4.6 billion years ago, and maybe even life on Earth.