Nicolaus Copernicus was a Polish astronomer, best known for the astronomical theory that the sun is stationary and Earth, spinning on it’s axis once daily, revolves around the sun annually. He was very intelligent and was educated at various universities. If Copernicus hadn’t challenged Pltolmy’s theory, it would have affected us in many ways. Space travel, satellites, and weather prediction would not be as advanced. Nicolaus Copernicus was born on February 19, 1473 in …showed first 75 words of 581 total…

…showed last 75 words of 581 total…He was one of the greatest thinkers of all time. For him to challenge Pltolmy’s theory was very courageous at that time. Many people doubted his theory. It was hard for people to believe something so different to what they had known. It’s incredible that Copernicus didn’t let society change his thinking. If it wasn’t for his intelligence and courage, we wouldn’t have the knowledge to test our space technology.