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 ...

During a total solar eclipse, people may see some strange things. Sure, there’s the main event happening in the sky (SN: 1/4/24). But the world may also look a little different on the ground. For a ...

How do plants use sunlight to make their own food? We use light for more than just to see. We can use light’s energy to make electricity, clean water, even dry our clothes. Plants use sunlight to make ...

Long filmstrips of ink-speckled acetate hang from racks in a corner of artist Bruce McClure’s Brooklyn loft. Shelves are packed with film reels and cans. McClure, sitting behind a table in the back of ...

When Toulouse and Veltchev run a demonstration in their lab, incoming infrared (IR) light waves, which are invisible to the human eye, are converted to visible lightwaves. As the IR light propagates, ...

Forbes contributors publish independent expert analyses and insights. I write about physics, science, academia, and pop culture. A week or so ago, I got a question on Facebook that was relayed from ...

NEW YORK, NY — Perceiving something – anything – in your surroundings is to become aware of what your senses are detecting. Today, Columbia University neuroscientists identify, for the first time, ...

A previous version of this article incorrectly said that the sky is blue because gas molecules in the atmosphere do not absorb the wavelength of light corresponding to the color blue. That wavelength ...

In “What is Light?”, we described light as both a wave and a particle under the conditions of the wave-particle duality. In the previous posts, we have mostly modeled light as a ray when discussing ...

The concept of an invisibility cloak sounds like pure science fiction, but hiding something from view is theoretically possible, and in some very-controlled cases it's experimentally possible too. Now ...