NASA's ICON mission gathered valuable data as it orbited the outermost layer of Earth's atmosphere, about 55 miles to 360 miles into space in the ionosphere, and provided critical breakthroughs on ...

NASA’s Ionospheric Connection Explorer (ICON) mission has not communicated with ground stations since November 25 due to some sort of glitch the space agency is yet to identify, NASA wrote in a ...

NASA's ICON satellite, well into an extended mission in space, fell silent on Nov. 25 and has not responded to calls from home.