Pluto Day: February 21, 2026


Celebrate Pluto's 96th Birthday!

Join us at the Lawrence Public Library on Saturday, February 21st from 10:30-12:30 PM for our annual celebration of Pluto's Birthday! This year we are celebrating the 96th Anniversary of Pluto's Discovery! Come learn about KU's connection to Pluto and celebrate our favorite Dwarf Planet with arts, crafts, and activities for all ages.
Pluto Day

Saturday February 21st

10:30 AM - 12:30 PM
Lawrence Public Library
Auditorium
707 Vermont Street
2025 Pluto Day Event

Activities

Passport to Pluto
Help build an authentic Pluto
Fold your own Paper Pluto
Decorate a Pluto Cookie
Liquid Nitrogen Demonstrations
Games, Coloring, and more!
Liquid Nitrogen Demonstration

Pluto's Kansas Connection

Clyde Tombaugh was a Kansas farmboy who built his own telescopes to explore the night sky. His drawings of the objects he saw so impressed astronomers at Lowell observatory in Arizona that they gave him a job at the observatory, where he discovered Pluto in 1930. He then came back to Kansas and received his bachelors and masters degrees in Astronomy from KU. 
Pluto day flyer