So…you’ve heard that the Webb telescope will be orbiting Lagrange point 2. But what even is that? Lagrange points refer to locations where the gravitational forces of 2 massive objects — such as the Sun and Earth — are in equilibrium. Webb will be located more specifically at Sun-Earth Lagrange point 2, or L2 for short. 1. Why send Webb to orbit L2? 😎 Shade: The Sun, Earth (and Moon) are always on one side. At L2, Webb’s sunshield can always face all of these heat & light sources to protect Web

Happy launch-a-versary! ✨ 4 years ago, Webb launched from French Guiana and changed our view of the universe forever. Like the best holiday stories, ours has it all: perseverance, triumph, a little bit of drama, and a whole lot of heart: https://www.nasa.gov/cosmicdawn/ | NASA's James Webb Space Telescope