The country's oldest planetarium has a new president. We hear what her vision is for the Adler.

Olympic gymnast and actress Cathy Rigby defies age and gravity as "Peter Pan." We talk with Rigby about her acrobatic career in sport and on stage.

A few years ago, Jay Shefsky introduced us to banjo prodigy Noam Pikelny when he had just joined mandolin virtuoso Chris Thile as part of his band, Punch Brothers. Pikelny is now nominated for a Grammy. We take another look at Jay's story.

The Smart Chicago Collaborative wants Chicagoans across the city to test the latest civic app and websites. 

Sen. Dick Durbin outlines the Senate 'Gang of 8' immigration proposal. Paris Schutz has the latest.

Charges of insider contracts surface in building and maintaining a $25 million UNO charter school. Carol Marin talks with the Chicago Sun-Times reporters who uncovered the story.

Provocative filmmaker Oliver Stone discusses his 10-part documentary series on the history of the United States.

Elizabeth Brackett reports on how the Shedd Aquarium is drastically cutting its energy consumption.

Look out below! Why are some Chicago neighborhood homes below street level?

The life and work of a tough Chicago artist.  We take a closer look at painter Joan Mitchell, who expressed herself strongly during a macho era in American art.

We read what some of you had to say about low water levels in the Great Lakes in tonight's Viewer Mail.

Former longtime New York Mayor Ed Koch died on Friday. We take a look back at interviews with Koch from the WTTW archives.

Eddie Arruza and his panel of journalists discuss the week's top headlines.

Eddie Arruza and his panel of journalists break down the hype surrounding Super Bowl commercials, and whether some ads intentionally try to stir controversy. They also touch on player safety issues in the NFL, and the trickle-down effect to youth football.

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