An Ariane 5 rocket, propelled by a main engine and two solid-fueled boosters, leaps off the pad at the Guiana Space Center with the James Webb Space Telescope.
The James Webb Space Telescope, a NASA-led international collaboration that took nearly 30 years and $10 billion to get to the launch pad, finally left Earth with a Christmas morning rocket ride from a European spaceport in South America, setting off on a mission to hunt for the first light in the universe. That was just the easy part.