When Nova debuted, humans had landed on the moon only five years earlier. Fifty years later, the PBS science program is exploring corners of the universe, and even aspects of life on Earth, that were ...

(This program is no longer available for online streaming.) From lobster claws and dog teeth to bee stings and snake fangs, every creature depends on a weapon. But some are armed to extremes that make ...

Of the over 100,000 people on the waitlist for an organ in the United States, 17 die every day. Now, the first pig-to-human heart transplant reveals some of the challenges of xenotransplantation.

Egyptian desert fossils reveal clues to the evolution of the biggest animals on Earth. A spectacular fossil graveyard reveals a 43-million-year-old whale that had four legs and could walk. Follow ...

Many readers may remember watching "NOVA" in middle school or high school science classes, and some of us haven't seen it since -- which is a missed opportunity for both science fans and history buffs ...

Similar to humans and other animals with higher intelligence, the executive center of a bird's brain allows them to strategize and organize ideas.