Plural of corona; multiple crown-shaped structures, halos, or specialized biological rings (used in anatomy, astronomy, and botany).
Latin plural of corona (crown). In scientific terminology, coronae is used for multiple crown-like structures rather than the English plural 'coronas.'
Solar coronae are so hot—millions of degrees—while the sun's surface is only 10,000 degrees, which is still one of astronomy's greatest unsolved mysteries, confusing scientists for decades!
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