I♥Pluto Festival 2022 | Daily Pluto Tours
Lowell Observatory 1400 W Mars Hill Rd, Flagstaff, AZ, United StatesFeb12 — 13, 18—20 10am – 4pm Hourly | Lowell Educators Learn about Clyde Tombaugh, the tenacious 23-year-old Kansanite who discovered Pluto in 1930, as well as the arduous process that led to his historic discovery. Is Pluto really not a planet? Find out on this historic tour!