Scientists describe emergence, a science that studies how complex patterns and behaviors arise from the actions of individual units acting independently. This NOVA scienceNOW segment: states that ...

This video segment adapted from NOVA scienceNOW examines the threat of a virus being spread from birds to humans, and then from humans to humans. It details the mechanisms viruses use to infect cells, ...

Dr. Pardis Sabeti is a professor of genetics and an infectious disease specialist at Harvard University. She developed an effective way to track the spread of genes in a population, providing insight ...

See a growth curve for T. rex from birth to 28 years old, the longest any T. rex has been known to live. (Flash plug-in required.) (Grades 3-5, 6-8, 9-12) ...

Survey students' opinions about whether we are alone in the universe. Is there life elsewhere in the universe? Is there intelligent life? Have students discuss these questions with a partner or in ...

focuses on research efforts that attempt to explain how lightning propagates, a phenomenon researchers are still trying to understand. shows different techniques used to study and measure lightning, ...

Learn in this 2001 interview with Dr. Folkman about his early insights, the long road to acceptance of his theory, and his hopes for angiogenesis therapies. (Grades 9-12) ...

National Corporate funding for NOVA is provided by Carlisle Companies. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.

NOVA scienceNOW astrophysicist Neil deGrasse Tyson holds office to answer viewer questions. In this video, Neil explains what got him interested in science as a kid.

(This program is no longer available for online streaming.) In this episode of NOVA scienceNOW, come face to face with social robots that understand human feelings, carry on conversations, even make ...