Question

What is Non- optical Astronomy?

Answer 1

Non-optical astronomy is the study of the sky through forms of energy and particles that we cannot see with our unaided senses. These forms of energy include radio and submillimeter waves, infrared and ultraviolet light, X-rays, and gamma rays......!!!

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Answer 2

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$\longrightarrow$Non-optical astronomy is astronomy that is carried out by an instrument other than an optical telescope.