In the vast expanse of space, nothing matters more than speed. Whether we're venturing out to the farthest reaches of our solar system or exploring the mysteries of time travel and wormholes, speed is the key. With stunning CGI and riveting footage, Known Universe: The Fastest explores interstellar travel, wormholes, and black holes and re-examines Einstein's theories that hint at the existence of portals that could reach through the very fabric of space and time.
This DVD Exclusive is one of the many titles in our National Geographic DVD Exclusives Library and is created in the DVD-R form. This disc does not feature menu pages or special features like standard DVDs, simply the high-quality programming you've come to expect from National Geographic.
For the first time ever, National Geographic presents its programming in DVD-R format. Available exclusively through this site, you can now own more of our award-winning specials and documentaries in a high-quality DVD format.
How our DVDs and DVD-Rs Differ
Customers who purchase programs in the NG DVD Exclusives Library will receive a non-interactive, play only disc. There is no chaptering information on these DVDs, but there are chapter marks approximately every five minutes, which make it easy to fast forward through a program. The DVD-R format provides the digital video and audio quality you expect from all of our DVDs.
NOTE: The NG DVD Exclusives titles are not close captioned. We apologize for any inconvenience this limitation may cause.
Human babies come into this world entirely helplessunable
to walk, talk, or feed themselves. And, as any parent can testify, a remarkable transformation occurs over their first year. But what's happening behind what you can simply observe? From first breath ...
Since the days of the Roman Empire, Italy's
Mount Vesuvius has erupted more than 50 times, devastating whole cities and towns. At Herculaneum, archaeologists found human skeletons in a fatal embrace. Although Vesuvius is sleeping now, this active volcano is ...