New York Times conservative Op-ed Columnist David Brooks has written on just about everything -- politics, war, class and beyond. We talk to him about his new book, where he reveals the power of our unconscious and its role in our development.

In yet another first in man's exploration of space, NASA's "Messenger" spacecraft arrived at the planet Mercury. It's the first craft ever to go into orbit around the closest planet to the sun. We talk to an Astrophysicist from the Adler Planetarium about what humans are learning from our planetary neighbors.

When it comes to your electric supply, ComEd may no longer be the only game in town. But does competition equal a lower power bill? Carol Marin and her panel discuss the issue.

AT&T announced plans to purchase T-Mobile for $39 billion. WBBM Newsradio 780's Kris Kridel joins us to look at how the deal will impact Chicago business.

People across the world wait anxiously for the next development in the Fukushima nuclear power plant meltdown scare. What is the nuclear energy situation here, and should we be afraid of radiation too? We talk with nuclear and radiation experts on the show. More on the Story: Local doctor on effects of radiation exposure

Body Worlds is back. The popular exhibit of preserved and dissected human bodies and body parts has returned to Chicago. This newest version focuses on how we age -- on the inside. Eddie Arruza reports on our internal life cycle. Body Worlds exhibit information Watch more Cultural Connections online

The stock market took a dip today, as news from Japan's nuclear plants left investors rattled. We find out what the disasters in Asia will mean for the market here at home.

Jay Shefsky talks with scientists who have found a way to create replacements for brain cells that die in the early stages of Alzheimer's Disease. More on the Story

The devastating earthquake and tsunami that hit Japan has already claimed thousands of lives. But now, the risk of a potential meltdown at a power plant raises new concerns about the use of nuclear energy. We talk with two experts to get their take on nuclear power. Sound off on our discussion board about nuclear power

Motorists may be doing a double-take as they head to fill up their tanks. Chicago-area gas prices have risen 11 percent in the last month. We find out what's behind the soaring dollar signs and if we can look forward to paying $5 a gallon in the near future. Find Chicago Gas Prices Tell us how you cope with higher gas prices

Why do we Canada Geese roaming all over Chicagoland? Geoffrey Baer has the answer in Ask Geoffrey. NPR story on Canada Geese Living with Wildlife, from University of Illinois Lytton's department store history Chicago Epidemics

Why local lawmakers, the FBI and the Federal Aviation Administration say this device could bring down an aircraft. And what local officials are planning to do to curb what they say is a growing threat to air safety at O'Hare and Midway airports. Our 'More on the Story' coverage

Since IBM's super computer Watson blew its human competition out of the water by winning on Jeopardy, the future of artificial intelligence looks bright. We explore that future. Washington Post with more on the story

Sick of shelling out at the gas pump? We sit down with the so-called father of the "Hypermiling" movement - who says you just don't have to. For more on Wayne Gerdes and CleanMPG.com Chicago Auto Show 2011

IBM's Watson super computer serves up stiff competition to its human challengers on Jeopardy. Ash-har Quraishi speaks with a computer scientist from Northwestern University about what the contest means for Artificial Intelligence. Learn about Watson

This week on Chicago Tonight: The Week in Review, the latest polls are showing mayoral frontrunner Rahm Emanuel pulling away. Cook County Board President Toni Preckwinkle is victorious with both State's Attorney Anita Alvarez and Tom Dart's budget battles. The Washington, D.C. meeting at Transportation Secretary Ray LaHood's office between airline officials and Mayor Richard M. Daley didn't get very far. There's a controversy brewing over the city's blizzard clean-up priorities. And to a chorus of boos, the Bulls' Carlos Boozer returns victorious to Utah.