Experience world mythology’s most legendary sibling rivalries Thor, god of thunder, and his trickster brother, Loki, have an eternal argument: Does strength always win, or do brains beat… Read More →

Forests create the air we need to breathe. They provide shade and homes for people and animals. They give us wood for fuel and for building materials. And they are beautiful spaces! But… Read More →

Fossil fuels heat our homes. They power cars, trucks, and planes. But every use of these fuels adds to rising temperatures on Earth. And they are nonrenewable. Someday, they will run out.… Read More →

Galileo Galilei believed in the power of scientific observation over traditional ideas. His close study of the night sky helped support the theory that planets move around the sun. His… Read More →

From one of China’s most famous epics comes a righteous hero and god of war. Guan Yu, an ancient Chinese warrior, fights side by side with his blood brothers Liu Bei and Zhang Fei to squash… Read More →

Famous for his superhuman strength, Hercules is the most popular hero in Greek mythology. The son of Zeus—king of the gods—and a mortal mother, Hercules faces the wrath of Zeus’s wife Hera,… Read More →

Famous for his superhuman strength, Hercules is the most popular hero in Greek mythology. The son of Zeus—king of the gods—and a mortal mother, Hercules faces the wrath of Zeus's wife Hera,… Read More →

When babies are born early, they often have trouble surviving. But special containers called incubators help babies grow by keeping them warm and protected. At first, people in the medical… Read More →

Isaac Newton's youth was marked by constant curiosity. As he began a life of research and experiments, he turned this curiosity into major insights about the workings of Earth and the… Read More →

Osiris is the greatest king and god of the Land of the Nile. He is a generous ruler, and the people love and worship him--along with his wife and queen, the goddess Isis. But Osiris's jealous Read More →

Osiris is the greatest king and god of the Land of the Nile. He is a generous ruler, and the people love and worship him--along with his wife and queen, the goddess Isis. But Osiris's jealous Read More →

In an era of discrimination, Jack Roosevelt "Jackie" Robinson broke Major League Baseball's race barrier. Before Robinson took his place at first base, the majors discriminated against… Read More →

Jason was born a prince of the kingdom of Argos. But when Jason was a child, his uncle Pelias stole the throne and sent Jason into hiding. Now a young man, Jason returns to claim his… Read More →

In 1936, Adolf Hitler attempted to make the Olympic Games in Berlin, Germany, a showcase of Nazi superiority with a new stadium and the first television broadcast of the Games. He didn't… Read More →

Young Arthur spends his days toiling as a squire--feeding the horses and hauling his big brother's armor. Around him, England is in turmoil, left without a king. But all that changes in one… Read More →

Durante décadas, los toques y chirridos de la guitarra eléctrica han sido algunos de los sonidos que definen la música popular. Pero tuvo que pasar más de un siglo de esfuerzo e innovación… Read More →