RT @BadAstronomer: Is that viral photo of a *quadruple* rainbow real?
Yes! Here’s how it works: slate.com/blogs/bad_astr… http://t.co/WEbs5sNupX
RT @BadAstronomer: Is that viral photo of a *quadruple* rainbow real?
Yes! Here’s how it works: slate.com/blogs/bad_astr… http://t.co/WEbs5sNupX