Earth, our home planet, is a world unlike any other. The third planet from the sun, Earth is the only place in the known universe confirmed to host life. With a radius of 3,959 miles, Earth is the ...

Add Yahoo as a preferred source to see more of our stories on Google. Happy Earth Day! For the 55th year, the world is using the day to celebrate Mother Nature and the wonderful planet we live on.

First someone had to conceive the idea of maps, then someone had to conceive the identity of ecosystems, and then someone could map those ecosystems. This clearly acknowledges that all maps are not ...

Some planets in our solar system have an incredible amount of moons. Jupiter has 95, with names like Ganymede and Europa. Remarkably, though, Saturn has almost three times that number, including the ...

Where there’s a tree, there’s usually a forest. But not always. A biologist describes some of the loneliest trees on planet Earth. When we think about isolation in nature, we usually picture islands ...

Happy Earth Day! For the 55th year, the world is using the day to celebrate Mother Nature and the wonderful planet we live on. "Earth Day really is a symbol of the environmental movement," Sarah ...