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From Chicago’s first major telescope, to the most sophisticated scientific instrument of the 12th century, a look at some seen and unseen treasures at the Adler Planetarium.

The mayor outlines major projects to expand recreation along the Chicago River. Why some aldermen say it’s not enough.

Why so many Chicago homes are testing high for lead in their water – and what you can do about it.

For those still unfamiliar with the magic Hershey Felder can create, an introduction to the man, whose enthralling show about Tchaikovsky is now in a limited engagement at Steppenwolf’s Upstairs Theatre, is essential.

A new book by author and photographer Larry Broutman highlights headstones, monuments and memorials at more than 30 area cemeteries.

Northwestern University hosts an Oxford-style debate on net neutrality this week. What are the pros and cons?

After massive layoffs in Harvey because of its underfunded pensions, a look at which other municipalities could be in similar trouble.

The U.S. Supreme Court on Monday announced it will not be taking up former Illinois Gov. Rod Blagojevich’s appeal of his 14-year prison sentence.

A bill that supporters say would make fracking operations in Illinois more transparent cleared its first legislative hurdle last week.

The beautifully thought-out program serves as a subtle but revealing portrait of the deep but varied influences that have taken root in this country.

The embattled former owner of Tronc, which owns the Chicago Tribune and other newspapers, sold the shares to McCormick Media LLC, according to an SEC filing that came late Friday afternoon. 

A new resource is designed to help adolescents and young adults develop job skills, continue their education and overcome barriers to stable employment.

A Park District landscaper who had previously lost his license after a drunk driving conviction is among those found to have operated vehicles without proper documentation, according to a new report.

Paris Schutz and guests discuss unionization effort by dozens of Chicago Tribune employees and the Chicago Bears’ decision to let Cameron Meredith walk.

Sen. Dick Durbin grills Facebook CEO Mark Zuckerberg. Chicago homicides are in decline. South suburban Harvey goes belly-up. And Cubs bats come to life despite injury to star slugger Anthony Rizzo.

Watch the April 12, 2018 full episode of "Chicago Tonight."

In many ways this show was ahead of its time when it was created. And now, whatever the flaws might be in this 21st century “rotation,” it is worth the price of a ticket for a ride on the “Carousel.”

Police Superintendent Eddie Johnson tells us about a big new cash gift to fight crime, discusses police oversight and more.

We meet some rare and remarkable critters that are part of this weekend’s annual Reptile Fest.

Congress makes another attempt at passing a balanced budget amendment as a new report shows the federal deficit skyrocketing.

The Fair Housing Act of 1968 promised equal access to the housing market for African-Americans. But 50 years later, some say the landmark legislation didn’t go far enough.

Geoffrey Baer hits a triple with three questions about Wrigley Field. 

The 50-year-old gorilla was the zoo’s oldest animal. “Knowing it’s the right decision doesn’t make it hurt any less,” said Amy Roberts, curator of mammals for the Chicago Zoological Society.

Nearly 300 Chicago aviation officers are suing to reclaim their status as law enforcement officers, a title they lost following a highly publicized incident on board a United plane last year.

The adage, “early to bed early to rise makes a man healthy, wealthy and wise,” takes on new meaning thanks to research by scientists in Chicago and England.

On Feb. 10, Lincoln Park Zoo welcomed a new baby bird, the first African penguin chick hatched and reared at the zoo's new penguin habitat.