Christian Farr explores how deconstruction is keeping reusable building materials out of landfills.

This man's creation may look like something out of a science fiction movie, but Greg Zanis believes his pyramid-shaped car could help solve the nation's fuel problems. Christian Farr goes for a ride and finds out why. DreamCar123.com: Photos, videos and more info

An 84-year-old scientist from the University of Chicago will be awarded the Presidential Medal of Freedom this year. We meet renowned geneticist Janet Rowley, whose breakthrough research has led to a better understanding of what causes cancer. Univ. of Chicago press release: Rowley awarded Gruber Genetics Prize for cancer research

The Ultimate Guide to America's Weather What's up with the weather? August is almost here and it feels as if we've barely had summer. We talk to the author of the new book, The AMS Weather Book:The Ultimate Guide to America's Weather, about what is causing this unusually cool weather pattern. Sample pages and additional information

A unique type of conference is coming to Chicago, and it is all about women and the Internet. Christian Farr takes us inside the BlogHer conference, and lets us know why these women bloggers are coming together.

Have you ever wondered what happens to embryos left over after a successful round of in vitro fertilization? We explore the answer to this question and the many controversies it has spurred.

In our Chicago Matters series, we are profiling some of the area's most interesting innovators. We meet the man known as the father of "carbon trading," Richard Sandor. Chicago Climate Exchange

Forty years after the Apollo 11 launch, we look at the inspiring legacy of the lunar missions and talk to an astronomer about the potential for the next giant leap -- a mission to Mars. Northwestern University Astronomy & Astrophysics Adler Planetarium

What is Cloud Computing? It's not about using your PC on an airplane! Northwestern University's Kristian Hammond explains this vision for the future of the Internet.

What's the region doing to prepare for its future water needs? Rich Samuels tells us as we continue this year's Chicago Matters series, Beyond Burnham. (Audio Slideshow) Conserving water in your garden

TV stations across country, including WTTW, made the historic transition to digital broadcasting last Friday. Christian Farr tells us how it went in Chicago, and also answers some viewer questions.

The transition to Digital Television is just one day away, and the FCC has some last minute advice. Christian Farr will join us once again to talk about making sure you are ready for the switch to digital.

A new approach to cancer treatment has emerged that emphasizes treating the patient, not the disease. We hear from the President of the American Society of Clinical Oncology on how this approach may change the course of cancer therapy for patients everywhere.

A controversy is raging over a proposed wind farm in DeKalb County. Rich Samuels tells us why as we continue this year's Chicago Matters series.

There are just 30 days to go until the transition to digital TV. Christian Farr joins us to explain what you need to do to make sure you are ready on June 12th.

Christian Farr explains why some Chicago Tonight viewers are having issues with lip sync, in which the sound and video do not match on their television, and offers tips on how to fix the problem. Report your lip sync issues