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 ...

Every day is a good day to celebrate Mother Earth. From mountain peaks to profound ocean depths, our planet hosts a complex array of plants and animals that all contribute to the beauty of our shared ...

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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 ...

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Add Yahoo as a preferred source to see more of our stories on Google. Every day is a good day to celebrate Mother Earth. From mountain peaks to profound ocean depths, our planet hosts a complex array ...