Sniffing out relatives? It may not be the human way, but it works for one finely dressed bird. We explore penguin behavior and more in tonight's Scientific Chicago.

Meet the Chicago high school students who have been digging for Mammoths in South Dakota, and working with paleontology superstar Paul Sereno at Project Exploration.

"He changed the way each of us sees the world." Those are the words of President Obama on the death of Apple co-Founder Steve Jobs. We talk about the legacy of the technological visionary. 

We take a look -- and go for a ride -- in what could be the future of transportation: hybrid electric and completely electric cars.

Did European scientists do the impossible and exceed the speed of light? They say they did; now west suburban Fermilab will conduct its own experiments on this. Eddie Arruza talks with a Fermilab scientist about the speed of light and what it all means.

Chicago Tonight's website gets a fresh new look. Ash-har Quraishi tells us about the new features and enhancements to our home on the web.

From a tiny shark tooth found in the Arctic to electronic tattoos that can monitor brain, heart and muscle activity, Neil Shubin joins us with a roundup of local scientific breakthroughs.

People are still talking about the East Coast earthquake felt from New York to Illinois. We talk with a seismologist about the quake's impact -- and whether it could happen here.

Do people of certain races all look alike? A recent scientific study delves deep into the so-called "other race effect." Ash-har Quraishi explains the science behind the study and how it could have practical applications in the justice system.

More and more medical providers in Chicago are switching their patient's paper records to electronic. But the conversion is giving some doctors headaches, and has some health officials alarmed. Paris Schutz has the story.

We talk with Chicago architect Adrian Smith, who, along with his firm, has been picked to design the world's tallest building — to be built in Saudi Arabia.

What do you get when you combine state of the art technology and role playing? Ash-har Quraishi takes us inside the simulation program at Northwestern University's Feinberg School of Medicine, where students are getting real-life medical experience in a virtual emergency room.

Snakes have escaped Lincoln Park Zoo and are on their way to the suburbs. Paris Schutz has more on where they've landed and why.

Henrietta Lacks died of cervical cancer in 1951. But her cells kept living, starting a scientific revolution and a multi-billion dollar industry. When members of her family found out, they felt angry and exploited. We revisit our recent conversation with the author of a best-selling book about the story.

With nearly 400 Borders bookstores soon to close across the country, we talk to a panel of experts about the future of books and the ongoing transformations in publishing and how we read.

Chicago has become an alternative energy hub. We talk to one of its pioneers about the economic impact of green energy.