cosmic humility

One of Carl Sagan’s most famous quote says “The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of star stuff.” 

Isn’t this fascinating, but at the same time completely surreal: We know that the molecules of our body are the same than the molecules that compose the Universe created in previous generations of...


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