Galileo Galilei

Galileo Galilei (Italian: [ɡaliˈlɛːo ɡaliˈlɛi]; 15 February 1564 – 8 January 1642) was an Italian astronomer, physicist and engineer, Continue reading

Ancient Greek Philosopher Proposed a Heliocentric Universe

Aristarchus of Samos, a Greek philosopher and mathematician proposed a heliocentric universe theory in 300 BCE, that the earth and planets make circular orbits around the sun. Continue reading

Sunspot Observations

According to the Chinese book The Ocean of Jade China was observing sunspots. Continue reading

First Photograph of the Sun

In 1845, Jean-Bernard-Leon Foucault, a French physicist and inventor, took a photograph of the sun. Continue reading