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Reporting our world daily: original nature and science coverage from National Geographic.

Explore the updated online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and web sites.

CNN.com International delivers breaking news from across the globe and information on the latest top stories, business, sports and entertainment headlines. Follow the news as it happens through: special reports, videos, audio, photo galleries plus i...

Explore HISTORY shows, watch videos and full episodes, play games and access articles on historical topics at History.com.

Groundbreaking developments in science, space, technology, health, and the environment

Hispanic, Latinos News in the U.S., Entertainment, Sports, Business, Columns and Videos

Team Everest

View lesson plans, booklists, and educational products for children grades Pre-K to 12. Classroom materials include online activities for kids, printables, and author interviews. Connect with other educators.

On belay. Get ready to climb at About.com

Extreme Science is the place online to find the biggest, baddest, and the best in the world of extremes and learn about the science behind what makes each the most extreme example of its kind.

Official site of Guinness World Records, the ultimate authority on record-breaking achievement, providing information about superlative facts and feats as well as record processing application for all those who want to set or break a Guinness World R...

Geology and Earth Science current events, news, articles, dictionary, satellite images, career information, reference maps, and more.