Secret Life of Scientists and Engineers

John Horgan interviews an IRA terrorist and wonders if he's made a huge (and perhaps dangerous) mistake in his life choices.

John Horgan studies terrorists and finds nuance and complexity where others see only evil.

A bunch of men try to create a kind of "female viagra," but they forget to talk with the ladies about it.

Nicole Prause finally gets a Harley Davidson... and all hell breaks loose!

Nicole Prause asks questions about human sexuality that scare other scientists. This also has an impact on her dating life.

Chris Hadfield takes a walk in outer - and inner - space.

We ask astronaut Chris Hadfield a bunch of silly questions and he doesn't shave his mustache.

While the other astronauts are sleeping, Chris Hadfield makes a music video tribute to David Bowie and comes back to Earth a viral sensation.

Janet Iwasa uses her mad animation skills to depict HIV cells and hopefully help researchers get closer to a cure.

Janet Iwasa studies animation in Hollywood and starts to think that the characters in "Lord of the Rings" behave a lot like proteins.

Janet Iwasa animates other biologists' ideas and research and creates a beautiful and useful way to communicate about the molecular world.

Danica McKellar and Winnie Cooper both have their first kiss on the set of "The Wonder Years"... and a nation swoons.