Four Shortlisted NASA Missions Would Explore the Nastiest Places in the Solar System
![Four Shortlisted NASA Missions Would Explore the Nastiest Places in the Solar System 2](https://i.kinja-img.com/gawker-media/image/upload/s--7yQENDn1--/c_fit,fl_progressive,q_80,w_636/lj7katpqwyi3xiyfti2b.jpg)
As part of its ongoing Discovery Program, NASA has selected four possible missions that would involve some of the most hostile and enigmatic places in the solar system.
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