Add Yahoo as a preferred source to see more of our stories on Google. On March 2, 2004, the European Space Agency launched the Rosetta mission to study Comet 67P. Rosetta would later become the first ...

On March 2, 2004, the European Space Agency launched the Rosetta mission to study Comet 67P. Rosetta would later become the first spacecraft to orbit a comet. It was also the only mission to attempt a ...