Nicolaus Copernicus was one of the most important astronomers in world history. He was the first to discover that the center of the universe is not the earth, but the sun.
Ponder about the earth
Geriatri'x' Fotogallery
…out of a digital shoebox
Nicolaus Copernicus was one of the most important astronomers in world history. He was the first to discover that the center of the universe is not the earth, but the sun.
Geriatri'x' Fotogallery 
Good one for the prompt
And yet it still seems that the sun moves, doesn’t it? 🙂 Good choice for “ponder.”
janet