The term Blue Moon is around 400 years old. The Krakatoa Eruption had a global optical effect. Due to heavy amount of ash in the atmosphere due to the eruption, the moon appeared blue in the sky for almost 2 years.
North Americans are fortunate enough to view the second full moon in the sky on May 31st, 2007 (Thursday) at 9:04 pm Eastern Daylight Time. Astro-photographers can sent me their pictures on the email address provided on the left menu of this page and we can have those featured on the blog.
Ever tasted the Blue Moon Beer ? Try it !