An engineer used powerful lights, cameras, and computer software to digitally remove the varnish from the "Mona Lisa," allowing people today to see the painting as Leonardo da Vinci created it.

In the late 1980's, perfectly preserved 3000-year-old mummies began appearing in a remote Chinese desert. They had long reddish-blond hair, European features and didn't appear to be the ancestors of ...

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. To find out, we imagined a souped-up spacecraft that could ...

By now, most of us know what the Earth looks like from space. But what it sounds like is another matter. Scientists have long known that radiation belts surrounding our planet—also called the Van ...

(This program is no longer streaming). Sixty-six million years ago, an asteroid wiped out the dinosaurs in a fiery global catastrophe. But we know little about how their successors, the mammals, ...

The planet looks blue from space, but new research shows that most of Earth's water may actually be deep underground. Share Earth is a jewel of the solar system, painted blue by the vast oceans that ...

What if the fundamental “stuff” of the universe isn’t matter or energy, but information? That’s the idea some theorists are pursuing as they search for ever-more elegant and concise descriptions of ...

In a contest for the least contentious statement a person can make, “What goes up must come down” is surely a strong contender. Of the four known fundamental forces—gravity, the electromagnetic force, ...

Split a mile in half, you get half a mile. Split the half mile, you get a quarter, and on and on, until you’ve carved out a length far smaller than the diameter of an atom. Can this slicing continue ...

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, ...

(This program is no longer available for online streaming.) Whether serving as Christian church, Islamic mosque, or secular museum, Hagia Sophia and its soaring dome have inspired reverence and awe.