This image of Earth, one of 77 composite photographs appearing in Otherworlds: Visions of our Solar System, gives an almost complete view of the planet taken a week before the northern hemisphere's ...

Earth is our home planet, and it's the only place in the universe ... it holds as much water as all five North American Great Lakes combined. Marilyn Perkins is the content manager at Live Science.

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 ...