The water level of the largest tributary of the Amazon River has hit a record low.

As the Moon crossed between the Sun and Earth during the 2023 annular eclipse, its shadow darkened skies across the United States.

The seas around Florida, Cuba, and the Bahamas saw large accumulations of heat stress beginning in summer 2023, with implications for the health of coral reefs.

A patchwork of farmland along the Snake River abuts a flow of hardened lava.

The cultural and political hub of El Salvador lies along the Central American Volcanic Arc.

A warm, dry September set the stage for increased fire risk in Australia.

Lidia quickly strengthened from a tropical storm to a category 4 hurricane before making landfall near Puerto Vallarta, Mexico.