The Congo River is a long, arcing river in West-Central Africa, featuring a rainforest and providing food and transport for 75 million people.
Chemistry is the study of matter, its properties, how and why substances combine or separate to form other substances, and how substances interact with energy.
These Y-shaped molecules can precisely target and neutralize viruses, bacteria and other foreign invaders.
Mummification, or the process of preserving the dead, was once a widespread practice among many ancient societies.
Scientists use herd immunity to describe the point at which a population is sufficiently immune to a disease to prevent its circulation.
Located about 66.5 degrees north of the Equator lies the Arctic Circle — a line of latitude that outlines the border of Earth's northernmost region known as the Arctic.
Written over 200 years ago, the Constitution is a legal document of Articles and Amendments that form the foundation of the federal government, state authority and citizen rights.
Poor planning and a lack of cooperation meant British strategy was destined to fail during the American Revolution.
The American holiday Juneteenth is observed on June 19 and is also known as Emancipation Day and Black Independence Day.
In the early 1950s, Dr. Jonas Salk and Dr. Albert Sabin each found a way to protect the world from poliomyelitis, the paralysis-causing disease commonly known as polio. Here's how they did it.
These spooky costumes may have been worn by some early modern physicians to ward off infection, but the history of plague medicine goes back much further.
On May 8, 1945, Nazi Germany surrendered to the Allies, bringing an end to World War II in Europe and triggering huge celebrations around the world.
Megiddo, a place known in the Book of Revelation as "Armageddon," was occupied between roughly 7000–300 B.C. A prophecy states that in the end times a final battle will be fought near this site.