Where people live today also makes a difference when it comes to fire risk.

As space agencies gear up for lunar missions, researchers have made enhancements that make maps of the surface of the moon more streamlined and precise.

The path of the Nile River has remained unchanged for about 30 million years. Now scientists know why.

Submarine canyons, deep trenches under the sea, are different from those on land, researchers say. They may give us insight into the geology of Mars, too.