Category: Astronomy 101
JWST: The Most Powerful Infrared Space Telescope Humans Have Ever Created
Header Image: The Cosmic Cliffs in NGC 3324, also known as the Carina Nebula. This image was taken by the JWST and shows cosmic dust and gas a part of the nebula, but also previously obscured star nurseries and stars that we can now see with the space telescope’s infrared light. Image Credit: NASA, ESA, […]
Why Do All Aliens In Star Wars Have Faces?
Header Image: Three Tusken Raider cosplayers sitting on the steps outside the Adler Planetarium for the 2014 Adler After Dark: Geek Chic event. As we were preparing to celebrate Star Wars Day, Adler Astronomer Dr. Geza Gyuk raised a very interesting scientific question about the Star Wars universe: Why do all the aliens in Star Wars […]
10 Things You Should Know About The Mars Perseverance Rover Mission
Header Image: Illustration of Mars Perseverance landing on the Red Planet. Credit: NASA/JPL-Caltech Blog Last Updated: March 2022 Humans have been fascinated by the fourth planet from the Sun for centuries. At one point, there were some astronomers who were absolutely convinced that canals—created by alien life—stretched across its surface. One thing is for sure: […]
The Jupiter And Saturn Great Conjunction Of 2020
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 […]
What Is A Blue Moon?
Header Image: Astrophotography picture of the Moon. Image Credit: Nick Lake What, exactly, is a blue moon, and how rare is it? This question seems like it should have a straightforward answer, but as with all things related to language, it’s complicated. Absurd, Impossible, or Rare? The phrase blue moon has been around for several […]
Space Poetry
Image Caption: The Andromeda Galaxy taken by an astrophotographer. Image Credit: Nick Lake From galactic paintings to space poetry, everyone’s favorite out-of-this-world muse—aka our universe—inspires all kinds of stellar works of art. Our staff came together and composed a few short poems all about aspects of space that inspire them. STAGES In my youth, I […]
The Adler Planetarium’s Original 1930 Zeiss Projector
Header Image: Planetarium guests attend a sky show with the Zeiss Mk II projector at the Adler c. 1955. Image Credit: The Adler Planetarium Archives When the Adler Planetarium opened in 1930 as America’s first planetarium, the centerpiece was a star projector made by the Carl Zeiss company of Germany, the Zeiss “Mark II”. This […]
Space News: Detection of Phosphine Molecules on Venus
Header Image: Photo taken of Venus by NASA’s Mariner 10 spacecraft in 1974. Image Credit: NASA/JPL-Caltech Have you heard the news? On September 14, 2020, a scientific team through the Royal Astronomical Society announced the detection of phosphine molecules in clouds on Venus! This means Venus—the hottest, terrestrial planet in our solar system—is making headlines […]
Choosing A Telescope
Header Image: Looking through a telescope at the Adler Planetarium. Editor’s Note: This blog was originally published in August 2020 and was updated in August 2024 with more current information. One question we often get at the Adler is: “I’m a beginner. What’s the best telescope for me?” The really short answer is, “The best […]
Social Distancing For Galaxies
Header Image: The original image of galaxies NGC 6285 (left) and NGC 6286 (right) was taken by NASA Hubble. Image Edit: Adler Planetarium We all know that social distancing is a good way to avoid catching (or spreading) a virus, but what if the stakes were even higher? What if standing too close to someone […]



