1) which scientist was later imprisoned for openly supporting the Copernican theory?
2) what did he discover that helped prove that Copernicus was correct?
1) The scientist who was later imprisoned for openly supporting the Copernican theory was Galileo Galilei. To find this answer, you can start by doing a general search using keywords like "scientist imprisoned for supporting Copernican theory." This search will likely lead you to Galileo's name, as he was one of the most famous scientists who faced persecution for his support of the heliocentric model proposed by Copernicus.
2) Galileo Galilei made several important discoveries that supported the heliocentric model proposed by Copernicus. One of his significant contributions was the discovery of the four largest moons of Jupiter. By observing these moons orbiting Jupiter, Galileo provided evidence that not all celestial bodies revolve around the Earth, contradicting the geocentric view. This finding strengthened Copernicus's idea that the Earth was not the center of the universe. To learn more about Galileo's contributions, you can search for his astronomical discoveries and their relation to the heliocentric model.