Our latest CNN Hero is an orchestra conductor, who’s helping more than 300 refugees and immigrants find purpose and hope through music. Dogs are spreading seeds at an urban nature reserve in the UK. Scientists are floating a new theory about how Egypt’s oldest pyramid may have been built. A 12-year-old boy in Massachusetts got his ice cream stand shut down, so the community stepped up to help him raise money for his brother’s special needs hockey team. And, a new village in Tanzania for vulnerable young people will be built using a 3D printer and soil.

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