Over the last 7,000 years, the Lena River—which moves millions of tons of sediment a year—has constructed the Arctic Ocean's largest delta.

The amount of water evaporating from lakes worldwide is significantly more than previously thought, and reservoirs may play an outsized role.

Clear skies and plastic have made it possible for the dry province in southeastern Spain to become a major exporter of tomatoes and other produce.

The Richat Structure in Mauritania is not what you think it is.

The charismatic creatures have cleared and maintained an open mud and mineral bath amid the rainforest in the Central African Republic.

Hundreds of fires are raging in the Northwest Territories and the Yukon.

São Miguel Island is the largest, most populous, and most volcanically active of the nine islands of Azores archipelago.

The tropics are home to the coconut, and also tropical storms. Learn all about how satellites track storms – from formation, landfall, and the aftermath. Then engineer your own tower and see if it can withstand the strong winds of a model storm.