The "once in a blue moon" phenomenon does not necessarily mean the moon will look blue on Halloween. While the dark blue tone of an evening sky can affect the coloring we see, Earth's satellite will ...

October's first full moon is the harvest moon on October 1, and the second full moon will occur on October 31. That's right: a full moon on Halloween. As if 2020 isn't weird enough, it's a year with ...

Halloween may be a little spookier this year. A blue moon is set to light up the sky on Oct. 31. Many have heard the phrase, “once in a blue moon.” It refers to something rare, just like this ...