Learn about the history of planetariums, are turning 100 in 2025, and check out the special source of Canton's own light shows.

The Adler Planetarium is hosting a special live-stream event from Chile on Monday.

New research shows there is at least a 40% chance of the existence of Planet Nine, but scientists are still looking for definitive proof.

This new dwarf planet may exist at the edge of the solar system, possibly disproving Planet Nine's existence. This is the story of that newly encountered planet.

No telescope has basked in the night sky quite like the enormous new Vera Rubin Observatory. Here's what it could reveal ...

A possible dwarf planet, like Pluto, has been observed in our solar system, according to a preprint published in arXiv. The area of space where this planet was found was previously thought empty.

The Adler Planetarium is hosting a special live-stream event from Chile on Monday. The livestream will show the first images from a new telescope equipped with the largest digital camera ever ...

The word “planetarium” was invented to describe orreries that featured the planets. One room-sized orrery example was built by the self-taught Frisian astronomer Eise Eisinga.

For years, astronomers have been searching for a mysterious ninth planet lurking in the dark outer reaches of our solar system. Now, a team of researchers have taken a completely different ...

Adler Planetarium/Provided The Night Out In The Parks event in Little Village scheduled for Saturday has been postponed, officials said Friday.