What’s the most important thing about the universe that most of us don’t know and that we should?
That the atoms in our body, the nitrogen, the iron, the carbon, all of this, are traceable to cosmic crucibles, deep in the centers of stars. The star manufactures them by thermonuclear fusion; and when it explodes, it scatters that enrichment into gas clouds that make the next generation of star systems, such as we.
So it is not like we are out in the universe, looking up and saying “I am alive in this universe, but I feel small”. No: the universe is alive within us; and we should feel large.
NEIL DEGRASSE TYSON
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“The universe is alive within us; and we should feel large.”
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