A group of students from the University of Chicago has found an ancient star named SDSS J0715-7334. This star should not be in the Milky Way because it formed in another galaxy before drifting into ours. The students made this discovery with the help of Professor Alex Ji and data from the Sloan Digital Sky Survey (SDSS). This project helps scientists study stars, black holes, and galaxies.
The students discovered SDSS J0715-7334 during an astronomy class. They were examining many stars when one star caught their attention. Professor Ji said this finding changed their plans for the course. The star has very little heavy material, such as carbon and oxygen, making it one of the oldest stars ever seen.
The researchers found that SDSS J0715-7334 originated in the Large Magellanic Cloud, a nearby galaxy. It drifted into the Milky Way billions of years ago. Professor Ji called it an “ancient immigrant,” highlighting that it gives a unique look at the early universe.
This discovery is special because it was made by students. One student, Ha Do, mentioned how exciting it is to contribute to such important research. Their experience might inspire them to continue studying science in the future.
