NOVA
PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and technology, and highlights the people involved in scientific pursuits.

Season 48 · Episode 14 ·
Particles Unknown
Outnumbering atoms a billion to one, neutrinos are the universe’s most common yet most elusive and baffling particle. NOVA joins an international team of neutrino hunters as they try to capture an elusive fourth form of neutrino. Their results may force scientists to redraw their blueprint of the subatomic world, the Standard Model of physics, and change our understanding of how the universe works.
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Episode 14 of season 48 of NOVA: “Particles Unknown”. Aired 2021-10-06. Watch it online free on ZapFlix.