Who first proposed the concept of a Heliocentric Model?a.Copernicusb.Aristarchusc.Galileod.Ptolemye.All of the abovef.None of the above

Who first proposed the concept of elliptical orbits?a.Galileob.Copernicusc.Keplerd.Hubblee.All of the abovef.None of the above

Who proposed the heliocentric model, placing the Sun at the center of the universe?Aristarchus of SamosPtolemyThalesAnaximander

Who proposed the heliocentric theory which states that the sun is the center of the universe.Group of answer choicesGalileiAristotleCopernicusDa Vinci

The scientist who developed a heliocentric theory of the universe wasMultiple choice question.A)Thomas Aquinas.B)Isaac Newton.C)Nicolaus Copernicus.D)Ptolemy.

Who proposed the heliocentric model, placing the Sun at the center of the universe?