The Wonders of the Milky Way by Max McGowan

https://www.sciencenews.org/article/early-stars-found-swirling-milky-way-center

The Wonders of the Milky Way

All over the galaxy we can find remnants of stars and other particles that have been around since the beginning of the universe, but recently astronomers have found starts at the very center of our galaxy since the beginning times. In Australia, 23 stars with very low metal content (a sign of very early stars) were found at the center of our galaxy. Such a high number surprised many astronomers because there are a lot of stars and gases in the galaxy’s jam-packed center, finding these stars is like “finding a needle in a haystack.” The star with the least amount of iron had one ten-thousandth as much iron as the sun. That’s like if you took all the iron in the sun and compressed it, you’d get a fist-sized rock. In comparison, if you did the same thing to the low-iron star, you’d get a tiny pebble. All of these stars of which have a very tight orbit around the center of the Milky way. Astonishingly, the oldest star found in the small cluster is estimated to be around 13.2 billion years old

Questions

1. Since we have found such old stars in the middle of our galaxy, is it possible that we could find other interesting things?
2. Do you think since these stars are so old, the if they were to explode from such a far distance, would it affect earth in any way?