National Geographic Explorer- msnbc.com

Are we obsessed with speed? National Geographic Ultimate Explorer correspondent Michael Davie experiences a frenetic world where athletes are extreme, cars are super-charged and speed-dating has left old-fashioned courtship in the dust. SUNDAY, 8 P.M. ET

Dan Burns / nofearfotos.com

Africa's Wild Eden
Journey to Gabon’s Loango National Park for a look at this mystical, unspoiled place. Airs Saturday, 8 p.m. ET

Killer crocs of Uganda
Brady Barr capturs the area’s rogue crocodiles to relocate them. Airs Saturday, 9 p.m. ET

Your Ultimate Explorer Team

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TECHNOLOGY AND SCIENCE

Shuttle launch delayed due to lightning
NASA postponed Saturday's scheduled launch of the space shuttle Endeavour by at least a day after several lightning strikes were reported near the Florida launch pad.

Where were you when Apollo flew?

YouTube's best viral mashups

Couple in astronaut assault case plan to marry

2,000-year-old cream shows aristocrat’s taste

Science

2,000-year-old cream shows aristocrat’s taste

Bridging the science gap

San Andreas fault giving off mysterious tremors

Archaeological Superintendency of Tuscany, Florence

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MSNBC SPECIAL

Tech Summit 2004: The Future Is Now

From cellphones to automobiles, movie making to music sharing, a new digital revolution is upon us. Technology once reserved for the science lab and the "Jetsons" has made its way to the rest of the world. Now YOU get to see the latest gadgets from the people who push the envelope everyday. MSNBC's Tech Summit was hosted by Lester Holt and Lisa Ling.

Weekends on MSNBC

Ultimate Explorer

MSNBC Investigates

Headliners and Legends