For Earth Day on April 22, interesting facts including who invented it, why it's on that date, and how it turned into a ...

The world is full of surprising facts about the Earth and how we interact with it, even when we don’t understand or ...

Ah, Earth. We may not think about our planet on a day-to-day basis, but the world we live in is a pretty interesting place. The third rock from the Sun—and to this day, the only one with known ...

Add Yahoo as a preferred source to see more of our stories on Google. This year marks the 55th anniversary of Earth Day! Every year on April 22, people worldwide mobilize to address some of the most ...

Earth, our home planet, is a world unlike any other. The third planet from the sun, Earth is the only place in the known ...

Earth serves as our fragile and precious home. As far as scientists are aware, it's the only astronomical object known to ...