On hearing the word sky, a blue sheet appears in front of the eyes. But have you ever wondered why the sky is blue? And when ...

The universe is full of phenomena that have seemed unexplainable to human beings, but only until science had an answer for it.

A mysterious spiraling blue light illuminated the night ... shows the glowing light spinning across the sky in what many social media commentators likened to a spiral galaxy.

Some of the world’s darkest skies are in the Big Bend region of West Texas – although in recent years, light pollution from ...

In the coming days ahead, if any of your friends or relatives remark to you that they saw a "strange UFO" on the way to work or school, you now can set them straight.

As the Sun moves lower in the sky, its light must travel through ... However, at sunset, the area around the Sun shifts to a ...

OSAKA--After sunset when Osaka’s central Umeda district dazzles with vibrant neon lights, visitors head upward to enjoy the ...

The moon dims, the meteors fly, and the planets dance—these are the most exciting celestial events happening this month.

Catch two transits of Io, spot sparkling star clusters, and view Mars at aphelion while the April Full Moon lights the sky ...

"Just as blue sunlight scatters in the Earth's atmosphere and makes the sun look slightly less blue, light from a strong blue, rich white street light enters your eyeball, scatters around in your ...