In Pictures: 21 critical future NASA missions

NASA space plans include trips to Mars, Jupiter, Pluto and the Sun as well as climate change operations

X-Ray vision: The Nuclear Spectroscopic Telescope Array (NuSTAR) will let astronomers study the universe in high energy X-rays. Slated for 2012, NuSTAR uses its powerful X-ray system to look for black holes and map radioactive material in young supernovas, NASA said.

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