The Chicagohenge is a bi-annual event where the cosmos and architecture harmoniously align. Learn about the science behind it all!

Everything you need to know about lunar eclipses, and tips to see the next total lunar eclipse on March 3, 2026.

NASCAR Chicago Street Race is reaffirming its commitment to STEAM and the Adler Planetarium with a sponsorship of Adler at Night.

Learn how to identify planets in the night sky with your naked eye. Wow your friends with your knowledge of visible planets in the night sky.

Learn how eclipses occur and the types of eclipses, solar and lunar, that occur when the phase of the Moon and the alignment of the Sun, Moon and Earth is just right.

What’s in the sky throughout February 2025? How to see Venus, Saturn, Jupiter, Mars, and other winter stargazing opportunities.

Astro Road Trip brings telescope programming to communities across Southern Illinois in preparation for the April 8, 2024!

How to safely observe the Sun and the October 14, 2023 and April 8, 2024 solar eclipses using a homemade pinhole projector. Get equipped to eclipse!

Header Image: Adler Planetarium 24″ reflecting telescope in the Doane Observatory after installation in 2020. Did you know the Doane Observatory is home to the largest publicly accessible telescope in Chicago? Since opening in 1977, the observatory in Chicago has had several telescopes within its walls, and these telescopes have given Chicagoans the opportunity to […]

Header Image: The Jupiter-Saturn Great Conjunction happening in December 2020 can be viewed when lookin southwest after local sunset. In astronomy, we often tie a time period to something. “It’s been 50 years since this one thing happened,” or “it’s been 3 years since we saw this other event in the sky.” Every once in […]