ExploreIGO, a Twitter fan account devoted to icy worlds, asked its community yesterday what to call a spacecraft visiting the big blue world. Embedded with the tweet is a 2021 proposal by three scientists led by Amy Simon, a planetary scientist at NASA Goddard Space Flight Center. The group told the U.S. decadal survey of planetary science that a spacecraft to Uranus is a "journey whose time has come." Uranus was voted the top destination by the community in April after this proposal process, which was led by the National Academies of Sciences, Engineering and Medicine. The decadal committee called...