Is a new City Council office the answer to curing the city's financial woes or just another layer of bureaucracy? Paris Schutz has the story.

The field of nanoscience -- the science of the very small -- is exploding and is likely to profoundly shape our future, impacting everything from energy production and storage to cutting edge, designer medicines. Here to help us separate the science from the science fiction is Dr. Amanda Petford-Long, director of the Nanoscience and Technology Division and the Center for Nanoscale Materials at Argonne National Laboratory.

The Bears are tied again for first place in the NFC North. James “Big Cat” Williams breaks down their latest win over the Cowboys, including Josh McCown’s stellar performance, and the receiving corps’ outstanding effort. Watch a web extra video.

President Obama and First Lady Michelle Obama leave on Air Force One to attend a memorial service for Nelson Mandela Tuesday as Illinois Attorney General Lisa Madigan recalls her year in South Africa while Mandela was imprisoned on Robben Island. Elizabeth Brackett has the details. Watch web extra videos about the anti-apartheid icon from WTTW's archives.

Now that Gov. Pat Quinn has signed the bill to fix Illinois' underfunded pension system, will it be found unconstitutional? Carol Marin and her panel of experts explore the issue.

We share what you had to say about Chicago Tonight's Ventra Special in tonight’s viewer feedback.

Cass McCombs returns to Chicago on Friday, December 6 to play The Empty Bottle on Western Avenue.

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

Joel Weisman and his panel of journalists discuss the life and legacy of Nelson Mandela. Watch the web extra video.

A festive aquatic show, Winter WonderFest at Navy Pier, and holiday shopping at the Merchandise Mart; Chicago Tonight knows what’s going on this weekend.

Nelson Mandela died at age 95. Watch web extra videos about the anti-apartheid icon from WTTW's archives.

Gov. Pat Quinn officially signed what he calls “historic legislation,” and “his number one priority,” into law today. Read an article.

On a special edition of Chicago Tonight with a live studio audience, we take a close look at the CTA’s problem-plagued rollout of its new Ventra payment system.

Besides the main arteries of museums and galleries, the Chicago area has endless capillaries of creativity.

Carol Marin and her panel of guests look at Tuesday's historic pension vote in Springfield. View interactive graphics to see how Senate and House members voted on the bill, and read a Q&A with Republican Sen. Matt Murphy.