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Pluto's moons are even stranger and more intriguing than scientists imagined, a new study reveals. The Pluto system consists of four tiny satellites — Nix, Hydra, Kerberos and Styx

McDonald Observatory astronomer Natalie Gosnell and her team used the open star cluster NGC 188 as a laboratory to study stellar evolution. Credit: Digitized Sky Survey 2 (STScI/AURA, Palomar/Caltech, and UKSTU/AAO)

Flying aboard the European Space Agency's Rosetta spacecraft, the NASA-built Microwave Instrument for the Rosetta Orbiter, or MIRO, will study gases given off by comet 67P/Churyumov-Gerasimenko when the spacecraft goes into orbit around the object in August 2014.

Video: Imagine a Landing on Pluto

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