Astronomy Quiz
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FOUNDATIONS & OBSERVING THE SKY
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The observation of a quasar's spectrum reveals a series of sharp, narrow absorption lines at wavelengths shorter than the quasar's own Lyman-alpha emission line. This phenomenon is known as the Lyman-alpha forest. How did the ability to obtain high-resolution spectra of distant quasars lead to a fundamental change in our understanding of the universe's structure?
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