At sunrise and sunset, the sun is at an angle to us. The atmosphere surrounds the Earth, so there is more "atmosphere" that the sun's light has to pass through to reach us.

Why is the sky blue on Earth, yet space appears pitch black? This video uncovers the science behind one of nature’s most ...

*Times for sunrise, sunset, moonrise, and moonset are given in local time from 40° N 90° W. The Moon’s illumination is given at 12 P.M. local time from the same location.

Paradoxically, noctilucent clouds usually form in the summer. That’s because during the hottest months of the year, surface air warms up and rises, expanding and cooling as it does so. Alongside ...

Tuesday, July 29 is expected to see intervals of clouds and sunshine, with the high to be near 30°C/86°F and the low to be near 27°C/80°F, according to the Bermuda Weather Service. Winds are expected ...

According to the National Oceanic and Atmospheric Administration, during sunrise and sunset, sunlight passes through more of the atmosphere than during the day when the sun is higher in the sky.