Research showing neutrinos have mass awarded Nobel Prize | WBEZ
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Research showing neutrinos have mass awarded Nobel Prize

The portraits of the winners of the Nobel Prize in Physics 2015 Takaaki Kajita (L) and Arthur B McDonald are displayed on a screen during a press conference of the Nobel Committee to announce the winner of the 2015 Nobel Prize in Physics on October 6, 2015 at the Swedish Academy of Sciences in Stockholm, Sweden. Takaaki Kajita of Japan and Canada's Arthur B. McDonald won the Nobel Physics Prize for work on neutrinos. (Jonathan Nackstrand/AFP/Getty Images)

Looks like John Updike’s poem about neutrinos being mass-less objects, “Cosmic Gall,” might need an update.

Takaaki Kajita of Japan and Arthur McDonald of Canada have been awarded the Nobel Prize in Physics for their discovery that the subatomic particles called neutrinos do have mass. Scientists have called this a historic and major discovery.

Michael Turner, director of the Kavli Institute for Cosmological Physics at the University of Chicago, tells Here & Now's Jeremy Hobson how this discovery has changed scientists’ understanding of the universe.

“The universe has so many neutrinos that they contribute as much to the mass budget of the universe as do the stars we see in the sky,” Turner said.

He says the neutrino, which he affectionately calls a “lightweight,” may be able to tell us about the origins of matter.

“The atoms that you and I are made out of, we believe that neutrinos in the early universe had a role in creating the ordinary matter that we’re made out of,” Turner said.

Correction: After our interview aired, Professor Turner sent us this correction:  “It is now four Nobels for the neutrino:  1988 for the discovery of the muon neutrino; 1995 for the discovery of the neutrino itself; 2002 for solar and supernova neutrinos; and 2015 for neutrino mass.  What a particle!”

via Here & Now

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