The mind of the chimpanzee is far more complex than we once thought. Eddie Arruza tells us what researchers at the Lincoln Park Zoo are learning about our closest non-human relative, and why those findings just might save the endangered species in tonight's Scientific Chicago.

A master class from a Maestro. Leonard Bernstein's finest works are brought to life in a one-man show, one of three one-person plays reviewed by Chicago Sun-Times theater critic Hedy Weiss.

A one-time funeral director talks about his greatest undertaking -- giving life to paintings of a spiritual world.

A super bust. That is what many are saying about the Congressional debt super committee after members admit they will not come to an agreement to cut the deficit. We take a look at why no deal came together.

Illinois' pension obligations are unexpectedly rising a billion dollars next fiscal year.

Retailers are gearing up to battle for Black Friday shoppers, while Bloomington-based State Farm warns of the dangers of deep frying on Thanksgiving. Kris Kridel of WBBM Newsradio 780 and 105.9FM joins us to discuss those stories, and more top business headlines.

An injury to Jay Cutler puts his season in peril and the Bears' playoff hopes in jeopardy. We recap his brilliant performance, and assess what happens now on our Bears Alumni Club.

We hear what you had to say about President Obama’s health care law when we read some of our viewer mail. 

Joel Weisman and his panel of journalists discuss the week's top headlines.

Need some ideas for what to do this weekend? Chicago Tonight knows what is going on!

The majority of Americans are already overweight. But a new study concludes that within ten years, obesity and diabetes in America will actually get much worse. We'll speak to some health professionals and take a look at the dangerous and costly expansion of America.

He broke the color barrier in Chicago baseball and was the first black-Latino in the Major Leagues. Now White Sox star Minnie Minoso is up for the baseball Hall of Fame. We examine his credentials.

What do you think about the recent controversial remarks made by Chicago Teachers Union president Karen Lewis?  We share some of your thoughts in tonight's Viewer Mail.

An intersection on the Far North Side marks an important piece of Chicago history.  Geoffrey Baer reveals the big significance of a small hidden plaque in this week’s edition of Ask Geoffrey.

It's called "Project Soapbox." High school students from around the city compete in a public speaking competition. We take you to an early round.