Millions of horrified Americans have watched clear blue skies morph into thick orange fogs in recent days as wildfires in Canada and a stalled low-pressure weather system have sent thick plumes of ...

After Monday’s storms and Wednesday’s column on rainbows, I received a lot of questions about light, colors and wavelengths. So, I wanted to answer a few of those in this Sunday’s Q&A. First up was a ...

It comes from much the same reason as to why the sky is blue. The sky is blue because tiny air molecules of oxygen and nitrogen, water molecules and dust interact with light. The small sizes of these ...

The ocean is blue because water absorbs colors in the red part of the light spectrum. Like a filter, this leaves behind colors in the blue part of the light spectrum for us to see. When sunlight hits ...

a) Illustration of the omnidirectional wavelength-tunable color device featuring a mechanochromic chiral liquid crystal elastomer (CLCE) and an electrically deformable dielectric elastomer actuator ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...