July 28, 2023 4:54 pm Mapping extreme heat in Massachusetts An army of citizen scientists is working to help monitor and map temperatures as part of a research project to help us understand heat islands and how to improve conditions in those areas. US & World Videos 4:05 Forecast: Springtime snow storm Saturday 2:17 School officials say no explanations given for student visas being revoked 3:56 Forecast: Several inches of snow possible for parts of New England 1:49 Tuberculosis testing clinic made available after potential exposure in Manchester, NH 2:01 Video shows rescue of 3 people whose boat ran aground in Boston Harbor
