Researchers visit an ancient pyramid in Peru in NOVA's Ancient Builders of the Amazon. Image Credit: Federico Pardo for NOVA/GBH For 50 years, NOVA has taken viewers on adventures through time and ...

In southern New Mexico lies the Tularosa Basin, an oblong bowl that’s home to a natural sandbox: White Sands National Park. In 2005, David Bustos came to White Sands to work as a National Park Service ...

(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, ...

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 ...

At some point or another, most of us have played travel agent to a dandelion. Blowing on their tufted tops is a childhood rite of passage for many, and a simple puff of air is all it takes to send the ...

For more than three centuries, a plague of unshakable lethargy blanketed the American South. It began with “ground itch,” a prickly tingling in the tender webs between the toes, which was soon ...

Leonardo da Vinci dissected some 30 cadavers in his lifetime, leaving behind a trove of beautiful—and accurate—anatomical drawings. Leonardo da Vinci's extensive studies of human anatomy were hundreds ...

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 ...

Dr. Percy Julian was a man of genius, devotion, and determination. The grandson of enslaved people from Alabama, Dr. Percy Julian met with every possible barrier in a deeply racist and segregated ...

If a theory doesn’t make a testable prediction, it isn’t science. It’s a basic axiom of the scientific method, dubbed “falsifiability” by the 20th century philosopher of science Karl Popper. General ...

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 ...

There’s truly nothing like a pretty sunset. As the sun sets, the heavens above are like cotton candy: lighting up with a beautiful display of deep reds, vibrant oranges, and intense pinks. Simply put, ...