There's a lot more to Earth than meets the eye. Far from being just a roundish rock barreling through space, our planet is composed of several layers held together by intense forces of gravity. Our ...

You don’t have to travel far for this one — we’re diving into the incredible planet you’re standing on right now. Earth is the only known world teeming with life, wrapped in oceans, mountains, forests ...

How much do you remember about planet Earth in the news over the last 12 months? Take our quiz to find out! When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

Earth Day began in 1970 and takes place on April 22 every year. Here are 10 questions to test your knowledge of the planet. 1. A day on Earth is 24 hours but it always hasn’t been that way. Are the ...

How to find out which animal you are with Google's quiz. — -- The Google Doodle today celebrates Earth Day with a quiz that asks, "Which animal are you?" After clicking on the rotating globe in ...