Join our astronomers for an inspiring guided tour of the Nantucket night sky! Using the Maria Mitchell Association’s powerful telescopes, you’ll have the chance to observe the Moon, planets, stars, nebulae, and even distant galaxies. Along the way, learn about constellations, the phases of the Moon, planetary motion, and the science behind eclipses.

This interactive, community-focused stargazing program is ideal for students, educators, and families—especially young adults and K–12 learners curious about astronomy and the wonders above Nantucket.

Location: Maria Mitchell Association’s Loines Observatory, 59 Milk Street Extension
Time: Program begins promptly at the scheduled event time
Registration: Required in advance
Cost: Free for Nantucket Island residents; $10 for non-residents
Contact: programs@mariamitchell.org

We look forward to exploring the cosmos with you!

Cancellation & Refund Policy: 

Open Nights are weather-dependent and will only be cancelled in the event of rain or a credible threat of thunderstorms. Please check our website on the day of the event for the latest updates—cancellation notices will be posted by 5:00 PM.

As a nonprofit organization, all payments and donations are non-refundable. Proceeds directly support our operations and programs, helping us continue to serve our mission and community.

We appreciate your support and understanding—thank you for helping make our work possible!