Too many Americans are prescribed too many opioids for too long, according to a new report from the Centers for Disease Control and Prevention (CDC).

A pod of orcas recently pursued and killed a minke whale off the coast of Kamchatka, Russia.

Amelia Earhart's disappearance during an attempt to fly around the world remains a mystery, but recent expeditions may have found clues to her fate.

A newly found back-and-white photo taken on the Marshall Islands may help solve the mystery of Amelia Earhart's disappearance, but not everyone is convinced that the famous aviator is in the photo.

Summers around the world are already warmer than they used to be, and they’re going to get dramatically hotter by century’s end if carbon pollution continues to rise.

The 1920s and early ‘30's looked like the beginning of the end for centuries of gay intolerance. Then came fascism and the Nazis.

Stephen Hawking recently described a runaway climate scenario in which Earth turns into a hothouse planet like Venus, but most climate experts say it is a gross exaggeration.

People have been describing and documenting eclipses for thousands of years.

Spam has maintained its popularity (or notoriety) for nearly a century.

Although they were once feared as an evil omen, solar eclipses have helped to shape human history.

Adults with ADHD may have an increased risk of developing dementia later in life, a new study from Taiwan finds.

Charlie Gard has a rare genetic condition that usually results in death in the first few months of life. Here's why the condition has such devastating effects on the body.

Known for their superficial charms but lack of empathy, psychopaths behave in impulsive ways. Now, a new brain scan study may reveal why.

North Korea did indeed test-launch an intercontinental ballistic missile (ICBM) yesterday, as the nuclear-armed nation claimed, U.S. officials said.

A scary representative of a Jurassic "ghost lineage" appears in Madagascar.