US officials are relocating bison in an effort to restore an American icon.

Around the South, Confederate statues are coming down in response to racial unrest.

Cold, fresh waters reveal thousands of shipwrecks in Michigan’s Great Lakes.

An uncommon algal bloom gave waves off California’s coast an eerie blue glow.

Decades of cleanup efforts restore an eroded and polluted Louisiana island.

Researchers pop a balloon to recreate an ancient cathedral’s acoustics.

Scientists study woodpecker skulls looking for ways to help humans.

Nine years post-disaster, a Japanese nuclear plant still deals with toxic debris.

Companies around the world use a tech tool to find power problems before they happen.

A judge rules that American Samoans should be granted US citizenship at birth.