Smithsonian Channel.

Examines the truth behind the controversial film and novel, "The da Vinci code."

Behind-the-scenes look at the making of the television program and film "Star trek," including the real-life incidents that inspired it.

The remains of a 48-foot snake were discovered in a Colombian coal mine. Follow scientists to the mine, into the labs, and into the field while they attempt to reconstruct the life of this enormous reptile that lived in a time just after dinosaurs were wiped from existence.

Join Elizabeth McGovern as she takes an in-depth look at the young American heiresses whose real life stories inspired the drama Downton Abbey. This series takes you from the late 1800s, when daughters of America's new industrial millionaires marry into the money-strapped British aristocracy, to the 20th century, when a new kind of American Princess wields power not through wealth, but through character, style, and wit.

No one would believe the story if it hadn't actually happened. The 1970 rescue of Apollo 13 captivated the nation and the film adaptation went on to win two Oscars. To reveal the truth, we put the big movie moments to the test. Firsthand accounts from astronauts and Mission Control staff involved in the rescue, as well as an interview with filmmaker Ron Howard, reveal the full story.

Mummies are everywhere, and they are turning up in the most unexpected places. Most are in astonishingly good condition, and all have astonishingly good stories to tell. Discover their secrets as cutting-edge virtual autopsies are conducted to solve ancient cold cases and get unprecedented looks into lost civilizations.

A documentary on the first African American aviators, examining the achievements of Bessie Coleman, William Powell, James Herman Banning, Thomas C. Allen, and Marlon Green.