A woman walks on a street with her umbrella as an atmospheric phenomenon known as a "sun dog" is seen in the sky over Havana April 12, 2013. The rare halo around the sun is caused by the refraction of... more 
A woman walks on a street with her umbrella as an atmospheric phenomenon known as a "sun dog" is seen in the sky over Havana April 12, 2013. The rare halo around the sun is caused by the refraction of sunlight by small ice crystals in the atmosphere. REUTERS/Desmond Boylan (CUBA - Tags: SOCIETY ENVIRONMENT) - RTXYJDY less 
1 / 9
Associated Press | Photo By REUTERS
Wed, May 15, 2013 11:00 AM EDT