lity article 2 days ago 3 min read NASA’s Lunar Development and Test Facility Prepares Artemis Hardware for Moon article 2 days ago Highlights 11 min read La NASA anuncia la cobertura de la misión lunar Artemis II article 5 months ago 15 min read Agenda diaria de la misión a la Luna de Artemis II de la NASA article 5 months ago 6 min read La NASA refuerza Artemis: añade una misión y perfecciona su arquitectura general article 5 months ago Explore This Section Visible Light What is the visible light spectrum? The visible light spectrum is the segment of the electromagnetic spectrum that the human eye can view. More simply, this range of wavelengths is called visible light. Typically, the human eye can detect wavelengths from 380 to 700 nanometers. WAVELENGTHS OF VISIBLE LIGHT All electromagnetic radiation is light, but we can only see a small portion of this radiation—the portion we call visible light. Cone-shaped cells in our eyes act as receivers tuned to the wavelengths in this narrow band of the spectrum. Other portions of the spectrum have wavelengths too large or too small and energetic for the biological limitations of our perception. As the full spectrum of visible light travels through a prism, the wavelengths separate into the colors of the rainbow because each color is a different wavelength. Violet has the shortest wavelength, at around 380 nanometers, and red has the longest wavelength, at around 700 nanometers. (Left) Isaac Newton's experiment in 1665 showed that a prism bends visible light andthat each color refracts at a slightly different angle depending on the wavelength of the color.Credit: Troy Benesch.(Right) Each color in a rainbow corresponds to a different wavelength of electromagnetic spectrum. THE SUN'S CORONA The Sun is the dominant source for visible-light waves our eyes receive. The outer-most layer of the Sun's atmosphere, the corona, can be seen in visible light. But it is so faint it cannot not be seen except during a total solar eclip