NASA's Unexplained Files (2012)

Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate.

Eerie encounters, bizarre disappearances, haunting events and more perplexing phenomena are explored in this chilling investigative docuseries.

Hosted by Morgan Freeman, Through the Wormhole explores the deepest mysteries of existence - the questions that have puzzled mankind for eternity. What are we made of? What was there before the beginning? Are we really alone? Is there a creator? These questions have been pondered by the most exquisite minds of the human race. Now, science has evolved to the point where hard facts and evidence may be able to provide us with answers instead of philosophical theories. Through the Wormhole brings together the brightest minds and best ideas from the very edges of science - Astrophysics, Astrobiology, Quantum Mechanics, String Theory, and more - to reveal the extraordinary truth of our Universe.

In this gripping docuseries, legendary reporter George Knapp travels the globe to uncover new evidence about UFOs and investigate their presence on Earth.

Witness the remarkable story of our universe over billions of years and its inextricable link to life on Earth in this sweeping documentary series.

MythBusters is a science entertainment television program created and produced by Australia's Beyond Television Productions for the Discovery Channel. The show's hosts, special effects experts Adam Savage and Jamie Hyneman, use elements of the scientific method to test the validity of rumors, myths, movie scenes, adages, Internet videos, and news stories.

Blast off with Snoopy as he takes on a new frontier: space! Joined by Charlie Brown, Woodstock, and the rest of the Peanuts gang, Snoopy embarks on epic adventures of interstellar exploration and discovery.

There is nowhere more powerful and unforgiving yet more beautiful and compelling than the ocean. Join us and explore the greatest yet least known parts of our planet.

A users' guide to the cosmos, from the Big Bang to galaxies, stars, planets and moons: where did it all come from and how does it all fit together? A primer for anyone who has ever looked up at the night sky and wondered.

Hawking gives us the ultimate guide to the universe, a ripping yarn based on real science, spanning the whole of space and time -- from the nature of the universe itself, to the chances of alien life, and the real possibility of time travel.