NASA astronauts aboard the International Space Station captured this crescent Moon floating in the distance in 2006. Part of the Moon appears blue, as air molecules in the atmosphere scatter blue light—making the horizon blue for astronauts, while making the sky blue for humans on Earth. ⁣ ⁣ 🌙 Learn more about our plans to return humans to the Moon by 2024: nasa.gov/Artemis ⁣ ⁣ Credit: NASA ⁣ ⁣ #nasa #themoon #atmosphere #clouds #inspace #artemis