Today In History logo TIH
Massive forest fires across Canada and New England pumped so much smoke into the
Featured Event 1950 Event

September 24

Blue Moon Glows: Canadian Fires Obscure Sun Globally

Massive forest fires across Canada and New England pumped so much smoke into the upper atmosphere that the sun vanished behind a dark haze and the moon turned blue as far away as Europe. The phenomenon demonstrated for the first time how large-scale wildfires could alter atmospheric optics across an entire hemisphere, a preview of the climate disruptions that fire seasons would increasingly produce.

September 24, 1950

76 years ago

What Else Happened on September 24

Talk to History

Have a conversation with historical figures who witnessed this era. Ask questions, explore perspectives, and bring history to life.

Start Talking