Green moon on April 20, 2016? Not true

No, there won’t be a green moon on April 20, 2016 … or on May 29. Some possible origins of this latest urban legend.

There are several versions this (completely untrue) story, and we’ve gotten many questions about it from within our community, from people wanting to know if it’s true. Here’s the main version: the moon will appear green for the first time in 420 years on April 20, 2016. True? No, not even kinda. Snopes called it:

… entirely humorous in nature.

And it is pretty funny when you think about April 20 (4-20) and 420 years, and realize that 420 is a code word for marijuana (invented, according to Urban Dictionary, by “dozen pot-smoking wiseacres” at San Rafael High School in 1971) and that the date April 20 has special meaning to some as Weed Day.

All of that notwithstanding, many appear to be taking the April 20, 2016, green moon literally.

And we repeat … it’s not true.

Deborah Byrd

Deborah Byrd created the EarthSky radio series in 1991 and founded the website EarthSky.org in 1994. Today, she serves as Editor-in-Chief of this website and blogs frequently about astrophysics, the night sky and other topics related to Earth, space and the human world. She has won a galaxy of awards from the broadcasting and science communities, including having an asteroid named 3505 Byrd in her honor. A science communicator and educator since 1976, Byrd believes in science as a force for good in the world and a vital tool for the 21st century. “Being an EarthSky editor is like hosting a big global party for cool nature-lovers,” she says.

Article published on EarthSky