Lighting has a powerful effect on our circadian rhythms, mood, and overall quality of sleep. As more people become aware of how their environment affects rest, a common question arises: what is the ...

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 ...

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 ...

The colors we perceive and the colors that impact our health are not the same. Without thinking, we tend to make decisions about the color of light and our surroundings based on what we perceive. But ...

What color is a tree, or the sky, or a sunset? At first glance, the answers seem obvious. But it turns out there is plenty of variation in how people see the world—both between individuals and between ...