The surface of the comet 67P/Churyumov–Gerasimenko with dust and visualizations of cosmic rays. The downward moving points of light in the background are stars. Filmed by the Rosetta spacecraft's OSIRIS instrument. Rosetta was a space probe built by the European Space Agency launched on 2 March 2004. Along with Philae, its lander module, Rosetta performed a detailed study of comet 67P/Churyumov–Gerasimenko. During its journey to the comet, the spacecraft flew by Mars and the asteroids 21 Lutetia and 2867 Šteins. #science #technology #space #cosmos #comets