An article that explains the spectrum we see about the matter and energy of the universe
"The universe is not only expanding - it is accelerating outward, driven by what is commonly referred to as "dark energy."
The visible universe—including Earth, the sun, other stars, and galaxies—is made of protons, neutrons, and electrons bundled together into atoms. Perhaps one of the most surprising discoveries of the 20th century was that this ordinary, or baryonic, matter makes up less than 5 percent of the mass of the universe."
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