Don't worry why the sky is blue or if the moon will be blue today - sometimes, you just need to enjoy the moment. It's an extra-special event, a rare occurrence. On Friday, July 31st, most of the world will experience this "contrast between the calendar month and the lunar month." Is there a time when you can celebrate a special event? No need to wait for a blue moon - but you do have one today. You never know what you'll learn by just enjoying the view.
http://news.discovery.com/space/astronomy/once-in-a-blue-moon-happens-on-friday-why-150730.htm
