Carl Sagan said that nitrogen in our DNA, calcium in teeth, iron in blood, carbon in apple pies was made inside collapsing stars. We are made of star stuff.
Carl Sagan said that nitrogen in our DNA, calcium in teeth, iron in blood, carbon in apple pies was made inside collapsing stars. We are made of star stuff.
コメント
まだコメントはありません。最初のコメントを投稿しましょう！