The impact of decades of acid rain (better known as acid precipitation) is causing North American lakes to turn to jelly.

In the 8th century, the Eastern or Orthodox branch of Christianity gave history the word iconoclasm, from the Greek words for "icon smashing."

Researchers surveying the deepest point on Earth, the Mariana Trench, also known as the Challenger Deep, made a number of remarkable discoveries.

Detective Wallace “Wally” Tennelle was a rarity: a cop who actually lived in the South Los Angeles neighborhood where he worked.

Three jumbo squids found themselves wearing fancy "sweaters" recently, thanks to a team of scientists from Stanford and the National Geographic Society

Emotional labor is a concept that sociologist Arlie Hochschild developed in the 1983 book The Managed Heart.

The first transcontinental telephone call was put through on January 25, 1915.

The debate about how much of the government's money should come from the rich is a conversation that goes back more than 100 years.

The relationship between GPA and the performance of good and bad teachers seems modest at best.

Michael W. Apple traces both the growth of home schooling and its related political activism to virtual communities made possible by the Internet.