Peyote is an important medicinal plant that is used in rites of passage and in religious and healing ceremonies in Indigenous communities.

(This program is no longer available for online streaming.) The centuries-old tradition of folding two-dimensional paper into three-dimensional shapes is inspiring a scientific revolution. The rules ...

NOVA is the most popular primetime science series on American television, demystifying the scientific and technological concepts that shape and define our lives, our planet, and our universe. The PBS ...

"Treasures of the Earth: Gems, Metals, and Power" is a 3-part series that will take us on a journey deep inside Earth to uncover the mysteries of how these treasures were created, and to explore how ...

Neil deGrasse Tyson is used to wearing a lot of hats. He is a leading astrophysicist, the director of the American Museum of Natural History's Hayden Planetarium, a columnist for Natural History ...

For most of us, or perhaps all of us, it's impossible to imagine a world consisting of more than three spatial dimensions. Are we correct when we intuit that such a world couldn't exist? Or is it that ...

Heavy water is a form of water with a unique atomic structure and properties coveted for the production of nuclear power and weapons. Like ordinary water—H 2 0—each molecule of heavy water contains ...

Archimedes of Syracuse was one of the greatest mathematicians in history. He was also a great inventor and scientist. Most of what we know about Archimedes today comes from his writings and those of ...

Forty-five years after a jury convicted Dr. Sam Sheppard of bludgeoning his wife to death in his home, the Ohio courts will once again hear testimony in a Sheppard trial. In January 2000, Sam Reese ...

In a multi-break firework, stars are contained in separate cardboard compartments within the shell. Each compartment has its own bursting charge, which ignites and throws out the stars. In order to ...

A few years back, NOVA Online asked both doctors and non-doctors to comment on the relevance of the Hippocratic Oath, which most aspiring physicians take upon graduation from medical school. Now, you ...

Chances are you've seen an illustration of DNA's double-helix structure and even pictures of the chromosomes that comprise the human genome. But where and how does the famous double helix fit into ...