The annual celebration of our Independence Day will dazzle the skies but will come with more sizzling heat with air quality ...

Have you ever looked up at the sky and wondered why it’s blue during the day, but glows orange or red during a sunset? It’s one of those everyday wonders we often take for granted. The answer ...

Regulus is a bright blue star in the constellation Leo, which is often called the 'lion's heart'. It regularly appears close ...

Mars and Regulus will light up the night sky in a rare celestial display from the Red planet and icy blue star ...

The fluctuating layer of smoke in our atmosphere meant that the expected blue skies in the evening and morning have taken on more of a dirty orange or milky white hue. The sun has also appeared as a ...

But a breathtaking blue supermoon is due to illuminate the sky at dusk on Monday evening. A blue moon usually occurs every two or three years and tonight (August 19), Brits can look out for it in ...

Here are many of the city- and community-sponsored events on tap, most of which are free or low-cost to attend.

Scientists mix sky's splendid hues to reset circadian clocks In a small study, a novel LED device with alternating orange and blue wavelengths outpaced two other lights in advancing participants ...

On a sweltering weekend evening, beneath a clear blue sky, Donald Trump supporters in red “Make America Great Again” hats packed the fairgrounds in Butler, Pennsylvania. It was a friendly and ...

With binoculars and a clear sky on Aug. 4, you may be able to spot tiny Regulus — the brightest star in the constellation Leo the Lion — slightly more than 1 degree to Venus's lower left. The ...

It was a sweltering evening in Butler County, Pennsylvania. On a sweltering weekend evening, beneath a clear blue sky, Donald Trump supporters in red “Make America Great Again” hats packed the ...