Crude oil prices tumble, the unemployment rate stumbles, and the housing market falls too. Eddie Arruza and our financial panel break down why the economic recovery has stalled.

A new form of DNA may help treat cancer, new understandings about ancient civilizations, and the important role of happiness in health. Chicago Tonight's science guy Neil Shubin talks about those stories, and his own upcoming research in the Arctic.

Geoffrey Baer takes you on a ride aboard Chicago's last surviving private commuter rail car. Chicago Tribune article

He used to manage the roadways of our nation's capital. Now he's followed Mayor Emanuel back to Chicago to direct transportation operations here. Chicago's new Transportation Commissioner Gabe Klein walks us through some of his ideas for improving how we maneuver in Chicago.

You can still enjoy the 31st Street beach, even though just south, some major construction is going on. Geoffrey Baer tells us what they're building in tonight's Ask Geoffrey.

A Chicago family leads their community to convert an illegal garbage dump into Eden Place: a three-acre nature center for their struggling South Side neighborhood. Jay Shefsky has the remarkable story. Eden Place Nature Center website Fuller Park Community Development website

It's not much now, but find out how the city plans to transform a three-mile long abandoned railway. Paris Schutz takes us for a journey down the Bloomingdale Trail. More on the Story: Web article & photo gallery Bloomingdale Trail website

Do cell phones cause cancer? And what exactly does the World Health Organization have to say about it? A Chicago scientist who contributed to the latest report joins us to clarify the findings.

Groupon Inc. has filed for an initial public offering of stock worth up to $750 million. Jim Kirk from Crain's Chicago Business joins us to discuss the local company's latest business move. Article on the filing Groupon website

Henrietta Lacks died of cervical cancer in 1951. But her cells kept living. They started a scientific revolution and a multi-billion dollar industry. When members of her family found out, they felt angry and exploited. We talk with the author of a best-selling book about the story. More on the Story: Read and hear an audio excerpt from the book Author Rebecca Skloot's website

A futuristic library lands on the University of Chicago campus. But where do they keep the books? Find out when we get a tour of the latest striking addition to Chicago architecture. More on the Story: See photos of the library and watch a video The Library website

Chicago leads the nation in adapting to climate change. WBBM Newsradio 780's Kris Kridel joins us with that and a look at the week's top business headlines. Article on the Com Ed rate hike Article on the drop in Chicago's unemployment rate

Imagine a world without fish. That's what author Mark Kurlansky did in his new book, and he didn't like what he saw. He tells us what it would mean if our oceans became nearly barren. Mark Kurlansky More on the book Marine Stewardship Council

If you can't get to a grocery store, let it come to you. Paris Schutz has more on an innovative solution to the problem of food deserts in Chicago. More on the Story: More about the mobile market Fresh Moves

This week on Chicago Tonight: The Week in Review, Rod Blagojevich, Mayor Rahm Emanuel and Congressman Jesse Jackson Jr. take the stand in the Blagojevich retrial. The Mumbai terror trial here gets international attention. ComEd gets its controversial rate hike approved. The legislative session is scheduled to end soon with redistricting and the state budget still unsettled. And in sports, a late game collapse dooms the Chicago Bulls' season. Guests:

We fly on a fully restored World War II bomber and meet a man who flew 35 missions as a tail gunner. The Collings Foundation