Frames of Reference

Richard Feynman is one of the most iconic, influential and inspiring scientists of the 20th century. He helped design the atomic bomb, solved the...

Carl and Susan, husband and wife, scientist and artist, navigate the challenges of Carl’s Alzheimer’s diagnosis.

Wildlife photographer Richard Sidey joins an international team of whale research scientists in Antarctica to document their work on how Humpback...

William Vennard's collaboration with Janwillem van den Berg resulted in his film Voice Production: the Vibrating Larynx. Winning several awards,...

The Curiosity rover is seeking environments on Mars that could support life—or could have in the past. Earlier Mars missions found signs of...

The icy South Pole desert is a harsh and desolate landscape in which few life-forms can flourish. But the extreme cold and isolation are perfect for...

In Astronomy Part 2, you will learn all about the planets, asteroids, comets, meteoroids, the layers of the sun, fusion, and more. The Standard...

Physics is a system of models of nature according to which all phenomena are explained in terms of matter and force. Sound confusing? It doesn't have...

An entertaining documentary look at dinosaurs with Emmy Award-winning special effects, feature film clips and stills, commentary by leading...

How can scientists study a faraway black hole that emits no light? By observing its quasar. As objects get pulled onto the accretion disk orbiting a...

Astronomers have located more than 1,000 planets orbiting stars other than our own, and the latest observations are starting to reveal what these...