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

What’s in the sky in September, 2025? How to see the vernal equinox, Chicagohenge, conjunctions between Venus and Jupiter, Saturn at opposition, and the full corn Moon.

Adler Skywatch: What’s in the sky throughout August 2023? See Chicagohenge, the super harvest Moon, the spring equinox, Saturn, Jupiter, Venus, and Mercury.

Header Image: The 2013 spring equinox, as seen from space. Image Credit: Nasa/ Earth Observer, edited by the Adler Planetarium Possibly the most photogenic planetary pairing of the year kicks-off this month, March 2023. Here’s your stargazing guide to view the Venus-Jupiter Conjunction, the spring equinox and other celestial events.  Venus and Jupiter Conjunction Just […]

Header Image: The Sun sets during Chicagohenge as a CTA train in Chicago, Illinois travels towards it. Image Credit: @cdats It’s a great month for planet viewing and observing the Earth-and-sky occurrence known as “Chicagohenge”, in September 2020. Start your planet viewing during evening twilight by looking low in the southern skies to see the […]