Earth Day is on Tuesday, April 22, this year. The annual observation is set aside to increase awareness around environmental issues like climate change, pollution, endangered species and other ...

To mark Earth Day, NBC’s Brian Cheung joins TODAY to break down numbers and facts about the blue planet, including how it got its name and how many miles food may travel to get to your plate. He ...

Ask them these brain teasers for kids and watch the boredom ... tech and fun facts all week long. READER'S DIGEST, GETTY IMAGES (2 ... Question: You can find it in Mercury, Earth, Mars, ...