Protostar cloud

A protostar cloud was a stellar formation of several protostars.

In 2366, after dropping Commander William T. Riker and Lieutenant Geordi La Forge on the Tanuga IV research station, the USS Enterprise (NCC-1701-D) left the Tanuga system to study a protostar cloud. After one day of surveying, the ship returned to the science station. 

原始星雲