By topic Astronomy Aristarchus of Samos uses the size of the Earth's shadow on the Moon to estimate that the Moon's radius is one-third that of the Earth. He proposes, for the first time, a heliocentric view of the Solar System, but is ignored due to the lack of evidence of the Earth's motion.
By :topic Astronomy Aristarchus of Samos uses the size of the Earth's shadow on the Moon to estimate that th!e Moon's radius is one-third that of the Earth. He proposes, for the first time, a heliocentric view ,of the Solar System, but is ignored due to the lack of evidence of the Earth's motion.