The Central Molecular Zone (CMZ) at the heart of the Milky Way holds a lot of gas. It contains about 60 million solar masses of molecular gas in complexes of giant molecular clouds (GMCs), structures where stars usually form. Because of the presence of Sag. A*, the Milky Way’s supermassive black hole (SMBH), the CMZ …



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Source: Sticks and Stones: The Molecular Clouds in the Heart of the Milky Way