“A few moments before the sun sets, the dark Earth shadow begins to rise in the east... It is nothing less than the shadow of the entire Earth, cast upward onto the atmosphere itself... I saw it over the great plains, and I felt as if I could sense the Earth pivoting silently under my feet.” IfsMomentsEarthFeltDarkSunSawsFeetShadowCastsEastAtmosphereIf I CouldSun Set Author:James Elkins
“Most people would guess that the sun is fifty or a hundred times brighter than the moon, but it's a half million times brighter - evidence of the amazing capacity of our eyes to adjust to light and dark.” PeopleLightEyeDarkHalfMillionsSunMoonHundredEvidenceCapacityFiftyBrighterLight And Dark Book:How to Use Your Eyes Source: How to Use Your Eyes
“The purple light or glow, which appears roughly fifteen or twenty minutes after sunset... looks like an isolated bright spot fairly high in the sky over the place the sun has set, and then it quickly expands and sinks until it blends with the colors underneath.” LooksLightSunSkyMinutesColorTwentiesSpotsSunsetIsolatedFifteenPurple Author:James Elkins
