The sun angle at this time is too low and, hence, UVB rays are filtered by the atmosphere of the Earth. At such a time, the ...

On this day, the sun is at its lowest point in the sky, your shadow is the longest and daylight is the shortest.

We measure our days in 24 hour increments, but our Earth is not on the same schedule as us. The spin of the Earth isn't exact ...

Utqiagvik, Alaska — formerly known as Barrow — won’t see the sun rise for 64 days. The nation’s northernmost town — Utqiagvik, Alaska — is about to descend into months of darkness. Think of it this ...