More on the recently discovered, impressive star factory, NGC 5253 :
The star cluster contains the most luminous of all known stars, each a million times brighter than our sun and is buried within a supernebula in a dwarf galaxy known as NGC 5253, in the constellation Centaurus.
Jean Turner, a professor of physics and astronomy in the UCLA College and lead author of the research said, “I’ve been searching for the gas cloud that is forming the supernebula and its star cluster for years, now we have detected it.”
“We were stunned,” said Turner, who is chair of the department of physics and astronomy. She and her colleagues first detected the star cluster’s radio emission in 1996. They will continue to study the galaxy using the Atacama Large Millimeter/submillimeter Array in Chile.
http://newsroom.ucla.edu/releases/more-than-a-million-stars-are-forming-in-a-mysterious-dusty-gas-cloud-in-a-nearby-galaxy
Additional complementary information about Transient Multimessenger Astrophysics with Gravitational Waves (GWs) :