6K views · 165 reactions | Hear from Southwest Research Institute planetary scientist Cathy Olkin about NASA Solar System Exploration mission Lucy and her journey to the Trojan asteroids – remnants of planetary formation found in Jupiter’s orbit – and what we hope to learn about our solar system. | NASA’s Goddard Space Flight Center | Facebook

How do planetary systems start? Webb will seek these answers. Dr. Amber Straughn and Dr. John Mather tell us more: | NASA's James Webb Space Telescope