W43-MM1 (IMAGE) CNRS Caption The active star-formation region W43-MM1, as observed using the world's largest millimetre interferometer, ALMA. The high number of star formation sites, known as cores and here identified by ellipses, are evidence of the intense star formation activity in this region. Credit ESO/ALMA/F. Motte/T. Nony/F. Louvet/<i>Nature Astronomy</i> Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.