Why do the northern lights have different colors? The color of the aurora depends on which gas is being excited by the ...

I pick out North America’s celestial highlights for the week ahead (which also applies to northern hemisphere mid-northern latitudes).

Winter color psychology relates teal to the slow ... Your nails resemble a winter night sky with a sprinkle of white stars and welcome you to the dreamscape of Periwinkle Starry Night.

Compared to the clear winter night sky, which shows myriads of twinkling stars, the nocturnal sky in spring has the reputation of being less spectacular. In fact, however, it is easier to see ...