To understand why some galaxies burst while others do not, Dr David Meier of the National Radio Astronomy Observatory and the New Mexico Institute of Mining and Technology and his colleagues from Canada, the United States, and Germany, used the Atacama Large Millimeter/submillimeter Array to dissect a cluster of stellar nurseries in the center of NGC 253. New ALMA data reveal a diffuse envelope of carbon monoxide gas (shown in red), which surrounds...
