China News Service, September 23. According to the CBS report, on the eve of Halloween in 2020, many places around the world will usher in a rare "blue moon".
2020 is the first time since 1944 that the full moon of Halloween can be seen in all time zones in the United States.
The next time a full moon appears on Halloween, it will take until 2039.
Data map: “Blue Moon” taken in Rio de Janeiro, Brazil in 2012.
NASA said that out of concerns about the new crown epidemic, some people who play "trick or treat" will stay at home.
There will be two full moons in October, the so-called "blue moon", which occurs approximately once every two and a half years.
Data map: "Blue Moon" taken in Macedonia in 2012.
"Blue Moon" refers to "the second full moon in the same Gregorian calendar month". It has nothing to do with the color of the moon. The last time the "Blue Moon" appeared was in March 2018.
According to reports, wildfires may affect the color of the moon, so astronomical observers in the western United States may see a blue-blue or red-blue moon in October.
The first full moon of October appears on October 1.
The second full moon can be clearly seen at 10:49 am Eastern Time on October 31.
According to reports, the last full moon on Halloween in the United States occurred in 2001, but only in the Central and Pacific time zones.