The blizzard's whiteout conditions are slamming Chicago commuters. The meteorologist-in-charge of the National Weather Service's Chicago bureau gives us the latest on what is being labeled a potentially "life-threatening" blizzard. National Weather Service: Chicago

As the massive snowstorm hits Chicago, the city says it is prepared. Elizabeth Brackett has the latest storm details.

We've all heard of Kennedy, but do you know who Dan Ryan or William Edens are? Geoffrey Baer fills us in. Virtual World's Columbian Exposition Chicago Expressways "Who was Dan Ryan" -- Chicago Now

Do you have complaints about your credit card company? Are you mad at your mortgage modifier? "The Fixer" columnist Stephanie Zimmermann of the Chicago Sun-Times offers tips for calling customer service, and other consumer advice. 'The Fixer' Column

January in Chicago means frigid temperatures and high heating costs. But at least one family may not be dreading the heating bill. In fact, they don't have a furnace at all. Ash-har Quraishi explores the principles of Passive House, a green building plan. Passive House Institute U.S. Passivhaus Institut (International) Four Thick Walls blog

Could new apps make textbooks obsolete? We talk to the Chicago developer, a student himself, about this potential game-changer. Watermelon Express Apps

Some eight million people in the U.S. suffer from Post Traumatic Stress Disorder. A new study from Northwestern University offers hope in the form of a drug that could prevent this debilitating condition. Jay Shefsky has more in our Scientific Chicago segment. Abstract of the study Northwestern's Dunbar Lab for Research on Fear and Memory

Today, Boeing announced it is pushing back delivery of its 787 Dreamliner for the seventh time. Find out why when Newsradio 780's Kris Kridel joins us to look at the week in business.

We find out why zoo officials and primate lovers across the country have gone "ape" over Lincoln Park Zoo's newborn baby gibbon. Read about the white-cheeked gibbon

What's behind rising rates of asthma, autism and other childhood diseases baffling doctors? A new long-term study launching in Cook County hopes to find out, and we tell you how your family can participate. To find out more visit The Greater Chicago Study Center online or call 1-866-315-7124

Hundreds of millions of gallons of water flow throughout Chicago taps every day. But is the water safe to drink? A recent environmental study has set off alarms on Capitol Hill and at the EPA. Ash-har Quraishi takes a look at "Chromium-6." Chromium-6 Study (PDF link)

Saving the world - one bike at a time. We talk with F.K. Day, the Chicago bicycle entrepreneur who was recently named "one of the top givers" of the year. Find out more about World Bicycle Relief

The threat from Asian carp has prompted a re-examination of the Chicago-area waterway system. One proposal involves permanently separating the Great Lakes watershed from the Mississippi River watershed, but not by closing the locks. Elizabeth Brackett has the story.

A revolutionary robotic hand was created by a team that included Chicago scientists. We talk about that invention, plus the brain boosting power of estrogen and more in our Scientific Chicago segment with University of Chicago paleontologist Neil Shubin.

An exhibit at the Shedd Aquarium will have you looking in the air instead of below the surface. We get an inside look at the birds of prey on display at the Shedd. Find out more about the Shedd Aquarium

Tonight marks the premiere of Geoffrey Baer's newest show at 7:30 pm on WTTW. We get a sneak preview, and chat with Geoffrey about his experiences Biking the Boulevards. Discover Chicago's boulevards, parks, and neighborhoods on the Biking the Boulevards interactive website