People love the rainbow of ROYGBIV colors: red, orange, yellow, green, blue, indigo and violet. Human eyes perceive visible light as this array of colors. You may notice that some colors you can ...

How can we measure visible light? The electromagnetic spectrum includes all forms of light energy, known as electromagnetic radiation. (1) Different types of electromagnetic radiation such as radio ...

The human eye does not actually see purple, as purple is not a color on the visual spectrum. Purple is a combination of wavelengths from opposite extremes of the spectrum, which technically deosn’t ...

Scientists have unraveled the evolutionary journey of a unique type of photosynthesis that allows some bacteria to harness far-red light, a region beyond the visible spectrum. This discovery could ...

A simulated view of what Mars' night sky might look like at its poles. Credit: NASA/JPL-Caltech/Cornell Univ./Arizona State Univ.– E. W. Knutsen The night sky at Mars' poles looks nothing like our own ...

Two-photon vision is a novel method with great potential for the future of ophthalmic diagnostics. Although it has many advantages, it requires improvement in key areas. ICTER scientists have taken a ...

On a flyby of Venus, NASA’s Parker Solar Probe captured the first visible light images of the cloudy planet’s surface from space, a new study reports. The nightside view of the extremely hot surface ...