A new study suggests light pollution determines where female sea turtles choose to build their nests. Darker sites are preferable because of hatchlings' needs.

In the past, archaeologists proposed that a lost civilization chopped down all the trees to make paths to roll the megalithic structures.

The neutral-pH water that generated types of clays probably flowed through the region during the first billion years of Martian history.

More than half of the plastic items were bags, many wrapped around coral.