When Betelgeuse explodes, it will release so much energy than the star will immediately outshine any other star in the night sky ... the deepest blue color with hints of purple.

A blue sky is a good sky. It's a reassuring sight that promises clear weather and bright days. But what does it mean when the sky turns purple? While it's not uncommon to spot purple skies during ...

Although you can spot many colors of stars in the night sky ... it as white. Purple stars are something the human eye won't easily see because our eyes are more sensitive to blue light.

The siblings sought a higher understanding on Halloween night when the purple light could be seen all across the Sacramento sky. Sergei Muhhin is visiting Sacramento from Estonia. "Did you see ...