Header Image: This is probably the first Moon rock picked up by Neil Armstrong as part of the “contingency sample.” Because the collection was so hurried and the documentation sparse, NASA scientists are not completely sure of the identification. Credit: NASA The Apollo missions sent humans to the Moon 50 years ago. Getting there required […]

In September 2016, we—the Adler’s ’Scopes in the City team—brought a telescope to the Wrightwood-Ashburn library branch on Chicago’s southwest side and set it up in front of the library. This branch has a beautifully clear view of the sky with no tall buildings in the way. A teen involved in other library programs came […]

Setting: Tuesday, June 30, 1908, around 7:15 am. A remote forest near the Podkamennaya Tunguska River in Siberia. A large fireball streaks through the sky followed by an intense wave of heat felt up to 40 miles away. A loud explosion. The ground shakes. Silence. If the playwrights of today were to write a theatrical […]

It’s night and you’re looking up into the night sky. What’s the first constellation you see? If you thought to yourself “the Big Dipper,” you’re not alone! In Western culture, it’s often one of the first things we learn to recognize in the night sky as children. For many people in the United States, this […]

Image Credit: NASA/JPL-Caltech Our Universe is filled with strange objects that even scientists have trouble classifying. Read on to learn about brown dwarfs, the celestial objects that are kind of like a star and kind of like a planet but are actually neither. A wise man once said, “Only a Sith deals in absolutes”. That […]

From moon phases to meteor showers, the Adler Planetarium has got you covered when it comes to knowing what to look for in the sky. Read our list below to get started! At all times, half of our Moon is lit by the Sun, just as half of the Earth is always lit by the […]

606 TRAIL The western entrance of the 606 Trail at 1801 N. Ridgeway, Chicago, IL is relatively clear of buildings, though not necessarily clear of light pollution. The 606 Trail is open until 11:00 pm daily. FOREST PRESERVE DISTRICT OF COOK COUNTY’S PALOS PRESERVES Did you know the largest Urban Night Sky Place in the […]

“One of the things I’m passionate about is bridging the culture wars,” Adler Astronomer Dr. Grace Wolf-Chase says cheerfully. In her office, Grace is rifling through a stack of bright pink foam-board posters featuring portraits of religious people who’ve made great contributions to science. She separates one from the rest. The bearded face on it […]

The evening of March 13, 1781, William Herschel was observing the sky with a fine 7-foot refracting telescope he’d made by himself, from the backyard of his home in Bath, England. At that time, Herschel was earning his bread as a musician, but he had been developing a strong interest in astronomy, sacrificing many of […]

The longest days and shortest nights of the year—for Earth’s Northern Hemisphere, anyway—take place this month, June 2019. The first day of summer for the Northern Hemisphere occurs on the solstice, at 10:54 am CDT on the 21st. It’s the longest day of the year, with the Sun rising very early and setting very late. […]