On Sept. 30, the European Space Agency concluded its Rosetta mission and the study of comet 67P/Churyumov-Gerasimenko. During the final month of the mission, NASA's planet-hunting Kepler spacecraft had a unique opportunity to provide a 'big picture' view of the comet as it was unobservable from Earth: Ground-based telescopes could not see comet 67P, because the comet's orbit placed it in the sky during daylight hours.
On Sept. 30, the European Space Agency concluded its Rosetta mission and the study of comet 67P/Churyumov-Gerasimenko. During the final month of the mission, NASA's planet-hunting Kepler spacecraft had a unique opportunity to provide a 'big picture' view of the comet as it was unobservable from Earth: Ground-based telescopes could not see comet 67P, because the comet's orbit placed it in the sky during daylight hours.
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