Astrophile
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- Aug 30, 2013
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How would they know that it is indeed all forms?
Scientists have developed methods of detecting and measuring electromagnetic radiation from high-energy gamma-rays (E = 100 MeV, or wavelengths of about 10^-14 metres), which are emitted by atomic nuclei, through X-rays (E = 100 eV to 100 keV, or wavelengths of 10^-11 to ^10^-8 m = 0.01-10 nanometre), ultraviolet light (10-400 nm), visible light (400-700 nm), infrared light (700 nm-1 mm) to radio waves (wavelengths of 1 mm to 100,000 km, or frequencies of 300 GHz to 3 Hz). There are no gaps in the electromagnetic spectrum, and the range of detectability covers a wavelength range of 10^22 to 1; it certainly covers all the forms of EM radiation that the Moon could emit.
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