🍂🌎 #SpaceSunday: The autumnal equinox arrives Sept. 22! Earth’s 23.5° tilt creates our seasons. ☀️ Explore the Big Sky and learn more about Montana’s night skies in Montana Skies at #TaylorPlanetarium! ✨
#AutumnalEquinox #Astronomy #MuseumoftheRockies