DISCOVERY CHANNEL LAUNCHES WHEN WE LEFT EARTH: THE NASA MISSIONS WEBSITE

SILVER SPRING, Md., May 21, 2008 � On Tuesday, May 20, Discovery Channel's WHEN WE LEFT EARTH: THE NASA MISSIONS full-tilt website, discovery.com/nasa went live. The site offers an extensive offering of interactive online destinations, from a timeline of NASA's missions, to learning little known facts about astronauts, the site brings the space age to life to inspire and educate.

A full list of the website's digital offerings follows:

Mission Control

Relive America's classic space voyages by assembling space vehicles, launching missions, and testing your skills at docking in space and landing on the moon.

Eyes on the Universe

Take light-speed voyages and see the universe through the eyes of NASA's amazing space telescopes (Coming in June).

NASA in Your Home

Have you ever wondered how space exploration impacts your daily life? From shock absorbing athletic shoes to ingestible toothpaste, discover which space-age technologies are present in your daily routine.

NASA Video Vault

The NASA Video Vault is packed with highlights from digitally-enhanced NASA documentaries and rarely seen mission footage. From intensive preparations for the first American manned spaceflight to the reentry and capsule recovery phase, feast your eyes on the best from the NASA film archives.

Share Your Memories

Were you watching when Neil Armstrong took that first small step? Did you happen to catch one of the Mercury, Gemini or Apollo launches? Whatever your vantage point, call in to share your own stories about the days when we left Earth.

Viewers can explore all of these features and more at: http://discovery.com/nasa.

About Discovery Communications

Discovery Communications is the world's number-one nonfiction media company reaching more than 1.5 billion cumulative subscribers in over 170 countries. Discovery empowers people to explore their world and satisfy their curiosity through 100-plus worldwide networks, led by Discovery Channel, TLC, Animal Planet, Science Channel, Investigation Discovery and HD Theater, as well as leading consumer and educational products and services, and a diversified portfolio of digital media services including HowStuffWorks. Discovery Communications is owned by Discovery Holding Company (NASDAQ: DISCA, DISCB), Advance/Newhouse Communications and John S. Hendricks, Discovery's founder and chairman. For more information, please visit www.discoverycommunications.com.