“Our Our ancest ancestor
- rs knew
knew tha that their their sur surviv vival al depended depended on
- n under
underst standing anding the the hea heavens ens. . They hey built built obser
- bserva
vator tories ies and and computer computers to to pr predict edict the the changing hanging of
- f the
the seas seasons
- ns by
by the the motions motions in in the the skies skies. . We We ar are, all , all of
- f us
us, , descended descended fr from
- m ast
astronomer
- nomers.“
Car Carl l Sa Sagan gan