Will the Moon turn green for 90 minutes on April 20, 2018? Of course not, despite claims by a viral video posted recently by The Free Though Project no such thing will happen, the claim is not true.
The Facebook post was published on April 1, 2018 (archived here) and had following caption under the video:
Please share this historic event! 🌜 Join Us: The Free Thought Project
The text in the video read:
On April 20th, 2018
Several planets will align causing the Earth's Moon to appear green for 90 minutes. This phenomenon is known as "green moon" and only happens once every four hundred & twenty years.
If you were wondering what the creators of the video were smoking, you'd be right. Snopes already debunked versions of this hoax in 2016 and 2017.
FACT CHECK: Will a 'Green Moon' Appear in April 2018?
On 20 April 2018, a Green Moon will appear in the sky, a rare event that only occurs every 420 years.
The references to the number 420 in the text (4/20, four hundred & twenty) are clearly meant as a nod to marijuana culture. However it appears the hoax came a little earlier this year so it could double as an April Fools' Day joke as well.