University Challenge

Threats to human existence are investigated.

Examining a complex scientific experiment that attempts to re-create the conditions that immediately followed the Big Bang.

Wired Science was a weekly high-definition television program that covered modern scientific and technological topics. In January 2007 PBS aired pilot episodes for three different science programs, including Wired Science. Using Nielsen ratings, CPB-sponsored research and public feedback, PBS selected Wired Science for a 10-episode run in the fall schedule. The program is a production of KCET Los Angeles. In July 2008, the show was officially cancelled.

"Dark flow" and its ramifications for the universe.

A rare genetic blood disorder threatens the life of a 3-year-old boy. His parents opt to use a controversial method in a bid to have another child who could provide him with a bone-marrow donor.

A two-part special about scientists who are determined to prove the existence of alien life forms. The show features some of the most breathtaking footage of remote locations on Earth, its outer atmosphere, and beyond. It also presents theories on how extraterrestrials would look and sound like.