Quick science lesson: Smoke from distant fires rises high into the atmosphere, flattens into thick layer. Wind pushes layer of smoke hundreds of miles away above Santa Rosa and the Bay Area. High, thick layer of smoke completely blots out the sun. At lower elevations, marine layer pushes in from the Pacific Ocean and forms a “protective bubble” closer to the ground. Bubble keeps the layer of smoke aloft and prevents it from settling, so air at the surface remains relatively clear and clean. However, particles of smoke above the bubble refract sunlight. The blue range of the spectrum is reflected, leaving the orange range of the spectrum to penetrate the smoke. That causes the sky to take on a glowing, apocalyptic hue, bathing everything below in the eerie palette of an atomic wasteland on Mars.