Media Contributed by Rick
Galileo Draft Letter 1609 Although draft of an August letter, in the late 1970s was it determined that the "doodles" on the lower half depict the positions of the Galilean moons on the nights in January when Galileo first observed them, thus proving that this document contains the original notes he took on the nights he made his observations.
Copernicus' heliocentric model Cropped image of page 9 verso of the autograph manuscript of Nicolaus Copernicus' De Revolutionibus Orbium Coelestium
Copernicus' heliocentric model from De Revolutionibus Orbium Coelestium
Kepler's Starmap showing his Supernova Johannes Kepler's original drawing from De Stella Nova (1606) depicting the location of the stella nova, marked with an N (8 grid squares down, 4 over from the left)
X-ray, Optical & Infrared Composite of Kepler's Supernova Remnant On October 9, 1604, sky watchers -- including astronomer Johannes Kepler, spotted a "new star" in the western sky, rivaling the brilliance of nearby planets. "Kepler's supernova" was the last exploding supernova seen in our Milky Way galaxy. Observers used only their eyes to study it, because the telescope had not yet been invented.
De revolutionibus, 1543, title page by Copernicus
Copernicus Nicolaus Copernicus portrait from Town Hall in Toruń - 1580)
