Rainforests change fast. Heat rises, light shifts, and leaves fight...

Less than three sugar cubes worth of plastic can be...

Cave pillars that can rise hundreds of feet turn out...

Four Earth systems that keep our planet stable are failing,...

Cahokia rose near today’s St. Louis and stretched across about...

Walk through an oak stand in late summer or fall,...

Crack open a chunk of white quartz from a gold...

Polar ocean currents are entering a new phase of motion....

In 2015, a team of scientists began digging through frozen...

Cave minerals from far northern Greenland show that the High...

Archaeologists report that a 205-foot scorpion-shaped earthwork in Mexico appears...