Oooo…. So spooky! This year, there will be a full moon on Halloween.
But did you know that it will be the second full moon for the month of October? That means it will be a Blue Moon!
No, the moon won’t actually appear blue, unless dust or smoke is in the air. This is a possibility, especially if the wildfires continue to burn this fall.
In fact, dust or smoke particles slightly wider than 900 nanometers cause Mie scattering — this means the red light is filtered away, allowing blue light to reach your eyes — and the moon appears blue!
Trick or Treat! Isn’t science neat??!!