The phenomenon is easier to see when a slim crescent moon is visible close to the horizon during the first or last few days of the moon’s orbit. It was discovered in his notebooks and commemorated his scientific writings.Īccording to NASA, there is a page in the “Codex Leicester” titled “Of the Moon: No Solid Body is Lighter Than Air.” In the entry, Da Vinci noted several ideas, including a theory that the moon has an atmosphere and oceans.ĭa Vinci also wrote that he believed that the moon was a reflector of light and that the glow of “Earthshine” was due to sunlight bouncing off the Earth’s oceans and hitting the moon.Īccording to NASA, Da Vinci was close – the primary source is light reflected off clouds. Instead, it is created by light from the Earth, whose light can illuminate the night sky 50 times more brightly than that of a full moon, according to NASA.ĭa Vinci, working on the knowledge available at the time, made a drawing that appeared to show the phenomenon. The glow is not due to the moon illuminating itself, Da Vinci discovered. "Twice-reflected sunlight subtly illuminates the dark limb of the crescent moon just before and after the new moon in a phenomenon called Earthshine, or 'Da Vinci glow'." /mYboQrLxTX- Lunar Astronomy Moon' Exploration & Coloniz/ News May 17, 2023 How to see ghostly 'Da Vinci glow' illuminate the crescent moon this week
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