Philae lander's mission ended early—within two weeks of landing on comet 67P/ChurymovGerasimenko—after its batteries ran out. But it managed to deliver a full set of results about the comet. Scientists from the European Space Agency, which is leading a consortium to find out more about the composition of comets and how they interact with the sun, are now analysing the data. So far they have detected what might be complex carbon compounds on the surface of the comet. This supports a view that comets may have brought key chemicals to Earth to kick-start life.