Old Stars Near Milky Way Center May Unravel Galactic Evolution
A group of astronomers comprising the Pristine Inner Galaxy Survey (PIGS) just found a large group of ancient stars circling the galaxy’s center in surprisingly orderly fashion.What Is Planet Nine and Why Can’t We Find It?The astronomical team’s work is the largest set of detailed observations yet taken of these very old metal-poor stars orbiting near the core of the Milky Way. The research was presented this week at the National Astronomy Meeting 2023 at the University of Cardiff. “It is exciting to think that we are…