ABSORPTION spectra of rare-earth ions have been increasingly studied over recent years because of their presentation of band and line absorption in the visible region. Much work has been carried out ...
Scientists have discovered missing colours in the Sun’s light spectrum. Hundreds of dark absorption lines remain unexplained, hinting towards hidden processes in our nearest star’s mysterious ...
One of the best visualizations ever produced of the spectrum of light from our glorious Sun reveals some mysterious holes in ...
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