Astronomers find most metal-poor star, shedding light on early universe

Astronomers discovered the most metal-poor star ever, offering insights into early universe star formation. The red giant, SDSS J0715 to 7334, located 80,000 light-years away, has a metallicity 20,000 times lower than the Sun. This discovery challenges existing stellar formation models. This "cosmic fossil" supports theories of dust cooling, suggesting early dust formation was crucial for creating such low-mass, metal-poor stars.