152K views · 1.1K reactions | Comet 3I/ATLAS is the third known object from outside our solar system to be discovered passing through our neighborhood. ☄ Track its current and future position using our "Eyes on the Solar System" interactive. Here it is passing near Mars in October: go.nasa.gov/4goaV2t All about Comet 3I/ATLAS and NASA's ongoing observations: science.nasa.gov/solar-system/comets/3i-atlas/ | NASA Solar System Exploration | Facebook

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