communication satellites

Mysterious X- and C-Shaped Patterns Discovered in Earth’s Ionosphere During Quiet Periods, Puzzling Scientists

NASA’s Global-scale Observations of the Limb and Disk (GOLD) mission has unveiled a perplexing new discovery in Earth’s ionosphere, the layer of atmosphere that lies between 50 and 400 miles above the planet's surface. Known for its role in facilitating long-distance radio communications and GPS signals, the ionosphere is a...