Clusters of stars form when giant clouds of material collapse. As the material in these giant clouds collapses, it heats up and emits radiation. This article describes observations of this type of giant cloud that is now collapsing and forming a new cluster of stars. These observations help astronomers better understand the properties of these giant clouds, leading to advances in this field.
http://www.raa-journal.org/raa/index.php/raa/article/view/1304