No, this is not a warning for the IDE IBM Eclipse, which was the first thing that popped into my head when I first saw it in an email. This is a real moon eclipse. See NASA website for more information regarding what it is and when it happens TONIGHT or actually August 28 early morning. Too bad it’s early enough that I can’t have a moon party. Perhaps getting up around 2:30am will guarantee a brief sighting of the mid-eclipse.