Fifty-five years ago today, humans were up there. 🌕
In 1969, #Apollo11 astronauts walked on the Moon. Since then, studying the Moon has taught us about Earth, from how life may have begun to understanding Earth’s energy budget. #InternationalMoonDay
Scientists use the Moon to track Earth’s brightness, or albedo. This helps scientists study the planet’s energy budget—the balance of energy entering and leaving the Earth system. #InternationalMoonDay
