It must have cleared all other celestial bodies, except its own moons, from its orbit.

Since the formation of Earth approximately 4.5 billion years ago, the convection and release of hot magma in its mantle layer ...

A 3D map of our cosmic neighborhood has revealed hot and cold regions as well as an "escape tunnel" from our local bubble.

How much land, water, and other resources does our lifestyle require? And how can we adapt this lifestyle to stay within the limits of what the Earth can give? A new article tackles these questions.