Question: Who showed that our universe is heliocentric the planets of the solar system revolve around the sun?
Disambiguated questions and answers: question: Who first proposed that our universe is heliocentric the planets of the solar system revolve around the sun?
Who first made a mathematical model that our universe is heliocentric the planets of the solar system revolve around the sun?
Who first made supporting observations with a telescope that our universe is heliocentric the planets of the solar system revolve around the sun?
answer: Aristarchus of Samos
Nicolaus Copernicus
Galileo Galilei
Galileo di Vincenzo Bonaulti de Galilei
Natural Questions answer: Nicolaus Copernicus (from the Wikipedia article "Heliocentrism")