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An overview of the history of space exploration and predictions for the future.

Chronology of space exploration, astrobiology, exoplanets and news

Space Exploration Network - Space Exploration Network

Nasa's website on human space travel

"America's Space Program: Exploring a New Frontier", a National Park Service Teaching with Historic Places (TwHP) lesson plan

The Soviet-Russian Spaceflight's History Photoarchive

The 21 Greatest Space Photos Ever  – slideshow by Life Magazine

"From Stargazers to Starships", Home page of extensive educational web site and course covering spaceflight, astronomy and related physics, by David P. Stern

We Are The Explorers, NASA Promotional Video