How Did Supernova 1987A Demonstrate That New Elements Are Made

question 45

Multiple Choice

How did Supernova 1987A demonstrate that new elements are made in supernova explosions?

• A) spectra of the supernova light revealed elements that have never been found in Earth or the stars
• B) the neutrinos observed from the supernova could only be produced through radioactive decay of heavy elements
• C) a tank with 8000 tons of pure water under Lake Erie detected gamma rays from new elements
• D) a pulsar with new elements in it was found using radio telescopes in England
• E) the light output was kept at high levels by the energy released from radioactive elements that decay very quickly; these must have been made by the supernova

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