Sunlight reaches the earth as white light, which is made up of all the rainbow colors. Rainbow colors are red, orange, yellow, green, blue, indigo, and violet. It is easy to remember them by using the ...

Amateur solar observing has an exciting new tool. The Lhires Lite spectroscope breaks sunlight into a rainbow of colors crossed by dark lines. For two centuries, professional astronomers have used ...

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Fraunhofer lines, discovered in 1814, are dark lines in the Sun's spectrum caused by the absorption of specific wavelengths of light by elements in the solar atmosphere, marking the birth of ...