with blue skies, strong winds, swift-sailing clouds and, at daylight’s end, a blazing spectacle of a sunset. It was a warm enough day, with an official high afternoon temperature of 58 degrees ...

If Earth had no atmosphere like the Moon there would be no scattering, and the sky would remain black, even in daylight ...

However, the higher it is in the sky, the easier it is to see, so get outside about 45 minutes after sunset just as a deep blue twilight takes hold. It is then that a bright Venus will most ...

Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you identify them.

Multiple Scattering Directions – Scattered blue light reaches our eyes from all directions, making the sky appear blue. Sunset and Sunrise Effect – During sunrise and sunset, sunlight passes through ...

Blue Ghost—named after a rare firefly ... when it will capture the first-ever photos of a sunset on the moon. "Ghost Riders in the Sky" is being conducted as part of NASA's Commercial Lunar ...