As Carl Sagan said, we are made of star stuff. This means that the raw materials of which we are made once existed inside a star.
- All the hydrogen in the universe was created during the Big Bang around 14 billion years ago.
- All the calcium that is present in our bones was forged inside stars that died a long time before our solar system existed.
- The water and hydrogen in our bodies and the rest of the universe are about 14 billion years old.
- We are the descendants of ancient stars; that's where our atoms came from.
- The majority of the oxygen that we breathe was made by giant red stars.
- When blue-white stars explode as supernovas, heavy metals like, copper, silver, mercury and lead are created.
"The Earth and everything on it including the oceans, atmosphere, and life itself, are composed largely of material that was once stardust, and later incorporated into the solar system as it formed." (May 8, 2006) ― David Morrison.
“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 starstuff.”― Carl Sagan, Cosmos.
"Humans are genetically connected with life on Earth, chemically connected with life on other star systems and atomically connected with all matter in the universe." ― Neil de Grasse Tyson.
Books To Read
Heavens on Earth: The Scientific Search for the Afterlife, Immortality, and Utopia, by Michael Shermer.
