In 2015, the United States Census Bureau estimated that 36.1% of individuals between the ages of 25 to 34 had a bachelors degree, with 36.3% in individuals aged 35 to 44, 32% in individuals 45 to 64, and 26.7% in individuals 65 and older.
Galileo Galilei was the first astronomer to use a telescope to study the heavens. Galileo made a number of observations that finally helped convince people that the Sun-centered solar system model (the heliocentric model), as proposed by Copernicus, was correct.
The heliocentric model is a theory that places the Sun as the center of the universe, and the planets orbiting around it. The heliocentric model replaced geocentrism, which is the belief that the Earth is the center of the universe.