Isaac Newton's Reflecting Telescope Photograph by Power And Syred, Nasa/science Photo Library - Fine Art America
The Royal Society on X: "Today in 1672, Isaac Newton revealed his reflector telescope and was elected a Fellow of the Royal Society. He was 29 years old https://t.co/U0PcTMNNGv #OnThisDay https://t.co/T725pzzw8w" /