Copernicus’ heliocentric solar system diagram. Harry Ransom Center collection, The University of Texas at Austin. Photo January 2012.
For someone like me, who works in astronomy and has a love of history, the collection at my university’s Harry Ransom Center is a joy. I’ve had multiple opportunities to see some of the great early astronomical text they have, including the one pictured above: Nicolaus Copernicus’ De revolutionibus orbium coelestium, published in 1543.
