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

Are you overwhelmed or even addicted to Facebook, MySpace or Twitter? An increasing number of people are opting out of social media. We look at who's quitting and why.

Are new airport security provisions a violation of privacy or an effective deterrent to terrorism? Experts weigh in on the debate over the increased use of full-body scanners.

Jay Shefsky looks at proton therapy for cancer as Illinois opens its first proton therapy facility. Advocates say it's better and safer than traditional radiation, but some doctors argue it's not worth the high cost. CDH Proton Center Dr. Ralph Weichselbaum

Kate McGroarty won the chance of a lifetime: to live inside in the Museum of Science and Industry for a month. We Skype with the 24-year-old Chicagoan from her museum home. Month at the Museum Follow Month at the Museum on Facebook

A new, free computer program can turn the most inexperienced computer user into a computer hacker, and the hacking is taking place at public wi-fi sites.

Why were powerful explosives linked to Al-Qaeda addressed to Chicago synagogues? Elizabeth Brackett tells us why the intended targets and the timing may not have been a coincidence.

The parking boxes on Devon Avenue might make it easier to find a spot, but we find out why some store owners say the boxes could be bad for business. Ash-har Quraishi has the story. West Ridge Chamber of Commerce Search for Chicago Parking Tickets Chicagometers.com

Is fear ruling the climate change debate? Self-described "skeptical environmentalist" Bjorn Lomborg says yes. He talks about his new documentary Cool It. Bjorn Lomborg's website Find out more about his new movie, Cool It, directed by Ondi Timoner Copenhagen Consensus Center

We hear what you have to say about some of our recent stories when we read our viewer mail.

Has the priest sex abuse crisis caused Chicago Catholics to lose their faith? The results of a new study may surprise you. We have more on that and on the study's author, the ailing sociologist and priest Father Andrew Greeley.

It's one of the biggest mysteries of the universe -- and Chicago's Fermilab thinks it may have the key to solving it. We delve further into this and other top stories from Chicago's scientific community when we talk with University of Chicago paleontologist Neil Shubin.

A young mother's battle with breast cancer inspires an innovative approach to helping other women with the disease. The Karen Dove Cabral Foundation