Particles Unknown -
nova

What's the commonest-yet most elusive and least understood-particle in the universe? The neutrino. Starting with the invention of the nuclear bomb, billions of dollars have been spent in pursuit of this so-called ghost particle. Outnumbering atoms a billion to one, neutrons are preposterously plentiful, they hardly interact with anything, and they mystifyingly morph between three different forms. What's going on here? NOVA joins an international team of neutrino hunters as they try to capture an elusive fourth form of neutrino. The results of their investigation may force scientists to redraw their well-established blueprint of the subatomic world, the Standard Model of physics, and change our understanding of how the universe works.

Duration: 56 minutes and 46 seconds

Episode Number: 4812

No future air times were found for this episode.

About Nova:

PBS' premier science series helps viewers of all ages explore the science behind the headlines.

Along the way, NOVA programs demystify science and technology and highlight the people involved in scientific pursuits.

Watch Nova - Clips, Episodes & Previews

Your Memories Are Not as True as You Think

Particles Unknown

Particles Unknown Preview

Robotic Cars

Detecting Earthquakes

Change Blindness

Future Broadcast times for "Nova": (show all)

Wed, Jul 16	10:00 P.M.	When Whales Could Walk NHPBS (11.1)
Fri, Jul 18	3:00 P.M.	When Whales Could Walk NHPBS (11.1)
Sat, Jul 19	2:00 P.M.	When Whales Could Walk NH Explore (11.2)
Sun, Jul 20	12:00 A.M.	When Whales Could Walk NHPBS (11.1)
Sun, Jul 20	5:00 A.M.	When Whales Could Walk NH Explore (11.2)
Sun, Jul 20	8:00 P.M.	When Whales Could Walk NH Explore (11.2)
Mon, Jul 21	12:00 A.M.	When Whales Could Walk NH Explore (11.2)
Tue, Jul 22	7:00 P.M.	When Whales Could Walk NH World (11.3)
Wed, Jul 23	12:00 A.M.	When Whales Could Walk NH World (11.3)
Wed, Jul 23	8:00 A.M.	When Whales Could Walk NH World (11.3)
Wed, Jul 23	11:00 A.M.	Solar System: Volcano Worlds NH Explore (11.2)
Wed, Jul 23	10:00 P.M.	Rise of the Mammals NHPBS (11.1)
Fri, Jul 25	3:00 P.M.	Rise of the Mammals NHPBS (11.1)
Sat, Jul 26	2:00 P.M.	Rise of the Mammals NH Explore (11.2)
Sun, Jul 27	12:00 A.M.	Rise of the Mammals NHPBS (11.1)
Sun, Jul 27	5:00 A.M.	Rise of the Mammals NH Explore (11.2)