Sky

Browse ScienceInfo articles and explainers related to Sky.

Topic archive

Articles about Sky

1,165 published items.

Why are clouds usually black before rain?
Environment

Why are clouds usually black before rain?

At the beginning of the rain, one of the signs of recognition is that when we look at the sky, we will be cloudy with a dark gray color.

December 16, 2018
Whirlpools rise to the sky in the Mexican sea
Environment

Whirlpools rise to the sky in the Mexican sea

The video recorded the spectacle of vortex trees near the beach of Arrocito in Huatulco, Oaxaca, Mexico that many viewers enjoyed, MSN reported on November 6.

December 16, 2018
Why is the sky blue?
Environment

Why is the sky blue?

Each color corresponds to 1 wavelength, frequency and carries different energy. Purple light has the shortest wavelength in the visible spectrum.

December 16, 2018
Why do corals appear around the Sun and Moon?
Environment

Why do corals appear around the Sun and Moon?

Sometimes we will find in the sky filled with silver gray clouds, when the sunlight or the moon shines on the clouds, the surroundings will be a faded silver halo. The h…

December 16, 2018
Dangerous nacreous clouds in the polar region
Environment

Dangerous nacreous clouds in the polar region

The dark black sky of the polar region in winter is not only the backdrop for the northern aurora bands, but also the presence of an equally natural phenomenon named nac…

December 16, 2018