The United States has experimented with democracy for 250 years, but our system of government was once a radical idea, born in ancient Greece. Ravaged by civil war and tyranny 2,500 years ago, the ...

Barter is the exchange of resources or services for mutual advantage, and may date back to the beginning of humankind. Some would even argue that it's not purely a human activity; plants and animals ...

A half-century after American astronauts walked on the Moon, NASA and its international partners are taking the dream of Apollo a giant step further. In the coming years, the Artemis missions – named ...

Chris Mazurek was a freshman in college when he had a dream that he was inside the Legends of Zelda video game. He saw himself as the main protagonist, Link, in third person. Suddenly, beeping noises ...

Elephants die; we all do. In elephants and some others, it matters who has died. It’s why they are “who” animals. The crucial importance of memory, learning, and leadership in a family’s survival is ...

After a U.S. Supreme Court ruling, DNA databases are set to expand. How will the decision affect your privacy? Certain information encoded in DNA, seen here in an x-ray data visualization, is being ...

Once you’ve seen a slime mold—its gooey, delicately branching structure oozing in a vaguely unsettling way along a log or leaf—you’re unlikely to forget it. They’re unmistakable because there’s ...

Could our universe be simulated? Physicists are saying that the answer is no. Scientists have discovered that it’s impossible to model the physics of our universe on even the biggest computer. What ...

An electrical engineer works on Form Energy's 2022 battery module in the company's lab in Berkeley, California. Image courtesy of Form Energy Share Weirton, West Virginia has iron in its blood. The ...

Receive emails about upcoming NOVA programs and related content, as well as featured reporting about current events through a science lens. The engineer whips out a protractor and straightedge. That’s ...

Kaden Bowen is a smiley 12-year-old who loves music and riding in fast cars. He also can’t walk or talk, is legally blind, and can only use the pinky finger on his left hand. Kaden has cerebral palsy, ...

A sequel to one of the most popular NOVAs of all time, "Miracle of Life," this Emmy Award-winning program tracks human development from embryo to newborn using the extraordinary microimagery of ...