= Nobel Prize in Physics in 2002
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One quarter each went to <Raymond Davis Jr.> and <Masatoshi Koshiba> for pioneering <astrophysics> through detection of cosmic <neutrinos>. One half went to <Riccardo Giacconi> for pioneering <astrophysics> leading to the discovery of <cosmic X-ray sources>.<The Nobel Prize in Physics 2002 by Nobel Prize Outreach>[Individual official 2002 summary: Davis and Koshiba one quarter each for cosmic neutrinos; Giacconi one half for cosmic X-ray sources.]{ref}
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