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Month in Space: Catch a Crescent Comet and Other Cosmic Wonders
See a close-up view of a "crescent comet," far-out Earth vistas and other space highlights from April 2015.
As Comet 67P/Churyumov–Gerasimenko moves closer to the sun, heat causes the nucleus to expel gas and dust in this April 15 image from the European Space Agency's Rosetta spacecraft.ESA / Navcam / Processing by Giuseppe Conzo
