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Our sun is a lifeless, fiery ball of gas fueled by a nuclear inferno. Earth, meanwhile, is a rocky, layered planet covered by water and teeming with life. Nevertheless, the elemental composition of these two celestial bodies is surprisingly similar.
The elements in the sun and Earth are pretty much the same, though Earth had less of the sun's more volatile elements, which evaporate at high temperatures, a new analysis reveals.
Researchers - Elements - Meteorites - Earth - Chondrites
First, the researchers analyzed elements that appeared in rocky meteorites that fell to Earth, known as chondrites. Chondrites, which also formed in the protosolar nebula, are often used as proxies for understanding the sun's chemical makeup, the researchers wrote.
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Sun - Composition - Observations - Radiation - Sun
They also evaluated the sun's elemental composition from observations of radiation in the sun's photosphere — the outer "shell" that emanates light — and incorporated data from solar turbulence and theoretical models.
Though the most abundant elements in the sun are hydrogen and helium, the researchers discovered a total of 60 elements was abundant in both meteorites and photosphere; these elements were probably also plentiful in the protosolar nebula before the sun's birth, according to the study.
Scientists - Results - Composition - Earth - Core
Then, the scientists compared their results to the elemental composition of Earth's core and primitive mantle, which can be gleaned through a combination of mathematical models, seismic data and rock samples. They found that...
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