Citizen scientists discover 6,000 "yellowballs," which are thought to be expanding clouds of gas and dust that are in the very early stages of forming star clusters.

Mysterious ‘yellowballs’ littering the Milky Way are clusters of newborn stars

Citizen Scientists Discover a new Feature in Star Formation: “Yellowballs”

'Yellowballs' offer new insights into star formation. A serendipitous discovery by citizen scientists has provided a unique new window into the diverse environments that produce stars and star clusters, revealing the presence of "stellar nurseries" before infant stars emerge from their birth clouds.