Back to the ice giants: proposed new mission would re-visit Uranus or Neptune (or both!)

Uranus (left) and Neptune (right). These two ice giants and their many moons are awaiting further exploration. Image Credit: NASA
Uranus (left) and Neptune (right). These two ice giants and their many moons are awaiting further exploration. Image Credit: NASA

The outer Solar System has been a busy place lately, with the ongoing Cassini mission at Saturn and New Horizons’ recent spectacular flyby of Pluto. Literally in-between those two worlds, however, it has been quiet for a long time now – the last time the ice giants Uranus and Neptune were visited was 26 years ago yesterday, when the Voyager 2 spacecraft flew past Neptune. There have been no new missions to these worlds since then, but if a new proposed mission gets the green light, that may change in the not-too-distant future.

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