A fascinating feature-length documentary, 'Titanic at 100' will take viewers on a journey to the bottom of the North Atlantic where they will investigate the remains of the most famous ship in history. Produced in conjunction with the Woods Hole Oceanographic Institute and RMS Titanic, Inc., this special provides the most authoritative look at the shipwreck, and is timed to the 100th anniversary of the sinking.

On the 400th anniversary of Jamestown, science is revealing the truth behind the myth. Archaeologists have discovered the site of Chief Powhatan's capital, Werowocomoco, the spot where John Smith met Powhatan and his daughter, Pocahontas.

Takes viewers behind the scenes on a journey with the astronauts and engineers charged with saving the famous Hubble Space Telescope. After nearly 20 years in space, and after capturing hundreds of thousands of spectacular images, the Hubble Space Telescope was dying. Stubborn scientists and the general public alike refused to abandon the telescope, and the mission was revived.