Join Lowell educators for a series of hands-on, family friendly activities exploring the most extreme, coldest environments in our solar system.

Experience ice on fire, dry ice like you’ve never seen before, and liquid nitrogen so cold that it shatters living material.

Your General Admission pass will get you all-day access to Lowell Observatory.

I Heart Pluto Festival 2023 is an event 93 years in the making! Celebrate the anniversary of Pluto’s discovery on February 18 – 20.

Show your love at the Home of Pluto in snowy Flagstaff, Arizona, where it was discovered by Clyde Tombaugh 93 years ago on February 18, 1930.

This festival will take place at Lowell Observatory with special events throughout the historic city of Flagstaff, Arizona.