According to Farmer's Almanac, the last Halloween full moon occurred ... skywatchers in the western U.S. may see either a blue blue moon or a red blue moon next month. A Blue Moon won't return ...

The red planet made its closest approach to Earth ... and the second is a rare full Halloween blue hunter’s moon. While the moon won’t actually look blue, the second full moon in one month ...

"That is Halloween for the first time in 76 years ... However, it can take on other colors like red if a blue moon coincides with a lunar eclipse. Those phenomena could alter the moon's color ...

In addition to making a rare occurrence on Halloween, the blue moon will ... Skywatchers may also be able to see Mars, as the blue moon will be close to the Red Planet in the night sky ...

While a blue moon seems rare, a full moon on Halloween across time zones is even ... On the evening of October 2, you might spy a fiery red star to the upper left of the harvest moon, or just ...

A blue moon — by definition a rarity — will rise this month, notably on Halloween. Take note ... which can scatter red light and make the moon take on a bluish hue, according to EarthSky.org.