 The name also retains an oblique reference to Eris's old informal name "Xena", portrayed on TV by Lucy Lawless.In the 2010s, on the heels of the successful Pluto flyby there were multiple studies for follow-on missions to explore the Kuiper belt, and Eris was evaluated among the candidates.It was calculated that a flyby mission to Eris could take 24.66 years using a Jupiter gravity assist, based on launch dates of April 3, 2032 or April 7, 2044.