NASA Announces Slate of Discovery Mission Finalists, With One Thing In Common

The four potential targets for NASA's next Discovery Mission have been announced and they're all worlds with lots of volcanism.

Rocky Planet iconRocky Planet
By Erik Klemetti
Feb 13, 2020 10:01 PMFeb 14, 2020 3:04 PM
The three Discovery Mission targets
The three potential destinations of NASA's next Discovery Mission, from left to right: Io, Venus and Triton. (Credit: NASA)

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