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YouTube is a place to discover, watch, upload and share videos.

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...

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

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

Discovery News digs deep into our world

Phys.Org internet news portal provides the latest news on science including: Physics, Space Science, Earth Science, Health and Medicine

Get in-depth coverage of current and future trends in technology, and how they are shaping business, entertainment, communications, science, politics, and culture at Wired.com.

Yahoo! Answers is a new way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

Watch full episodes of your favorite PBS shows, explore music and the arts, find in-depth news analysis, and more. Home to Antiques Roadshow, Frontline, NOVA, PBS Newshour, Masterpiece and many others.

CBS News brings you the latest breaking world news, national news, political, business and entertainment news, as well as stories from 60 Minutes and the Early Show.

ABCNews.com is your breaking news resource for top stories, videos, photos, blogs, special reports and exclusive celebrity interviews on Good Morning America, World News, Nightline, 2020 and This Week.