Twenty-five years ago, NASA launched one of the most ambitious experiments in the history of astronomy: the Hubble Space Telescope. In honor of Hubble's landmark anniversary, NOVA tells the remarkable story of the telescope that forever changed our understanding of the... More

A seven-mile-wide asteroid collided with Earth 66 million years ago, triggering a chain of events that coincide with the end of the dinosaurs. But experts have long debated exactly what happened when the asteroid struck and how the giant beasts met their end. Now,... More

Hurl your star across spacetime, hitting targets and avoiding celestial hazards in your quest to earn a star that's big and bright enough to go supernova. As you play through the game’s 50-plus levels, you’ll meet new cosmic objects like small but dense... More

Amateurs helped discover Tabby’s star, suggesting that citizen scientists might be the x-factor in discoveries to come. More

Call somebody a “bird brain,” and you’re not delivering them a compliment. But as NOVA shows, birds turn out to have advanced problem-solving skills that we usually assume are unique to humans. Watch astonishing tests of avian aptitude: parrots that can... More