Earth’s secret halo, revealed! 🌍✨ NASA’s soon-to-launch Carruthers Geocorona Observatory will capture the first movies of Earth’s geocorona, the faint halo of ultraviolet light given off by the exosphere, our planet’s outer atmosphere. Within the first two hours of science observations, it will capture more pictures of the exosphere than currently exist! Why it matters: Space weather forecasting 💥 Atmospheric water escape 💧 Habitability 🌱 Exoplanet science 🪐 Launching Sept. 23! 🚀 Learn mor