Abstract from the article based on work at Siding Springs
The tidal remnant of an unusually metal-poor globular cluster
https://www.nature.com/articles/s41586-020-2483-6
https://www.smh.com.au/national/aust...29-p55gin.html
"This new result is indeed exciting and significant," said Professor Richard de Grijs, a Macquarie University astrophysicist who was not involved in the research.
If the Phoenix stream really was a building block of the Milky Way, "that is exciting, because such objects would be composed of the earliest stars formed in the universe," he said.