The color purple is, in a way, invented by our brains. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The world is awash with the color purple — ...

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 ...

When it comes to appearances, the universe is a tricky place. Visible light occupies merely a sliver of the electromagnetic (EM) spectrum. To study the cosmos in its entirety, scientists must peer ...

A study participant puts in a contact lens. Researchers developed lenses with nanoparticles that convert infrared wavelengths into visible light that humans can perceive. Yuqian Ma, Yunuo Chen, Hang ...

In a captivating display of scientific exploration, NASA has unveiled a mesmerizing visualization showcasing the true colors of our mighty celestial neighbor, the Sun. Contrary to its familiar golden ...

A new type of polymer material that can be patterned using gentle visible light, creating stable hidden images visible only ...

Light is more than what we see. The Sun sends out a number of waves of light in different wavelengths. Find out about wavelengths and the electromagnetic spectrum. Science Trek is available to stream ...