Mondo Knows Facts
Hydrogen makes up three quarters of all cosmic mass
As the simplest chemical element hydrogen dominates stellar composition across space
Hydrogen consists of a single proton and electron, making it the lightest and simplest chemical element in existence. Created in vast quantities during the Big Bang, hydrogen accounts for roughly 75 percent of all normal baryonic matter in the universe. It acts as the primary nuclear fuel powering stars like the Sun.
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Tags: chemistry, hydrogen, elements
Hydrogen makes up three quarters of all cosmic mass: the short answers
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- As the simplest chemical element hydrogen dominates stellar composition across space. The figure is taken from NASA Science, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
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