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

The missions of our New Frontiers Program are already unlocking the secrets of asteroids, Jupiter and the far reaches beyond Pluto. 🛰 Today we'll unveil the next expedition of exploration. Watch the announcement on NASA Science Live at 4pm ET on this page or http://go.nasa.gov/31ROsEh | NASA Solar System Exploration