<p>NASA launched a mission from French Guiana on January 25 to explore the Earth’s upper atmosphere at the edge of space.</p><p>The mission, named the Global-scale Observations of the Limb and Disk, or GOLD, will examine the response</a> of the lower atmosphere to the impact of the sun on the ionosphere, at the boundary of space. Credit: NASA via Storyful</p><br />
