Comment Comment by JProthero Might the low abundance of carbon on Earth compared to its ubiquity in biology be suggestive of some kind of panspermia?Although carbon is relatively scarce on Earth, it is the fourth most common element by mass in the universe (and in Earth's solar system) [1].The four most common elements in the human body are the same as the four most common elements in the universe, albeit in different proportions [2].[1] https://en.wikipedia.org/wiki/Abundance_of_the_elements#Univ...[2] https://en.wikipedia.org/wiki/Abundance_of_the_elements#Huma... parent JProthero 2 years ago
Although carbon is relatively scarce on Earth, it is the fourth most common element by mass in the universe (and in Earth's solar system) [1].
The four most common elements in the human body are the same as the four most common elements in the universe, albeit in different proportions [2].
[1] https://en.wikipedia.org/wiki/Abundance_of_the_elements#Univ...
[2] https://en.wikipedia.org/wiki/Abundance_of_the_elements#Huma...