Final answer:
Dr. George R Carruthers created a spectrograph designed for moon use, which allowed for the capture of UV images without the obscuring effects of the Earth's atmosphere. Its most famous image was of the Earth in ultraviolet light, showcasing its hydrogen atmosphere, polar auroris, and tropical airglow belt.
Step-by-step explanation:
Dr. George R Carruthers created a spectrograph designed for moon use. This invention accompanied the ability to capture UV images without the obscuring effects of the Earth's atmosphere. Its most famous image was of the Earth itself, taken in ultraviolet light, which allowed for observations of the full extent of the hydrogen atmosphere, the polar auroris, and the tropical airglow belt.