Micro Wave: "Once In A Blue Moon" Is Happening Again This Halloween
b'This year, there will be a "blue moon" for Halloween. So for today\'s show, we\'re asking: What IS a blue moon? Is the moon ever blue? And are they as rare as the phrase "once in a blue moon" implies?
For additional info and fun links, check out the episode page.
Follow Maddie and Rebecca on Twitter for more science nuggets. Maddie\'s @maddie_sofia and Rebecca\'s @rebeccalramirez. Email the show your celestial musings and inquiries. We\'re at shortwave@npr.org.
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