Worth enough is always debatable but here are some future proposed science goals for an interstellar probe: https://en.wikipedia.org/wiki/Interstellar_Probe_(sp

Worth enough is always debatable but here are some future proposed science goals for an interstellar probe: https://en.wikipedia.org/wiki/Interstellar_Probe_(spacecraft)#Primary_science_goals https://en.wikipedia.org/wiki/Interstellar_Probe_(spacecraft...