Electromagnetic+Spectrum

How can light and radiowaves help scientists gain information about the universe?

-it can help gain information by helping us discovering new things - with this technology we have discovered brown dwarf stars - brown dwarf stars: stars that have failed but are dark at visible wavelengths and warm enough to glow in the infrared - it helps look at the center of ordinary-looking galaxies - people have found super hot collapsed stars at the center of galaxies