A glorious, colorful image captured by a telescope in Chile shows the bright glow of star cluster RCW 38, where young stars ...

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 ...

There are three primary colours of light, which can be combined to make secondary colours. A rainbow contains all the colours of the visible spectrum. It is often possible to see a secondary bow ...

This image shows the Sun in visible light. This image of the sun's surface ... atmosphere — was taken in the extreme ultraviolet region of the electromagnetic spectrum.

as their absorption spectrum is limited to the visible light region with a wavelength of 850 nm or less. To solve the problem, the research team designed a hybrid device that combined an organic ...