According tomedia reports, the Milky Way is very cold. Our galaxies are relatively “quiet” compared to some of the other galaxies observed by astronomers. It didn’t crash into another galaxy and didn’t chew dust and gas, it just wandered around and did its own thing, at least for now. In the past, however, researchers now have evidence that the Milky Way is also a bit of a dehumanic.
A new study in the journal Nature explains that a large pile of ancient stars has just been discovered at the edge of our galaxy, and scientists believe it is the remnants of a star that was torn apart by the Milky Way a long time ago.
This is not the first time stars orbiting our galaxy have been discovered. In fact, researchers already know more than 100 such clusters, but what makes this now look special is the age of the star itself. Based on their observations, the researchers believe these stars are very old, and our galaxies tore apart their original structure 2 billion years ago.
“When we knew which stars belonged to this stream, we measured the abundance of the hydrogen and helium-heavy elements in them; astronomers call it ‘metal abundance,'” The study’s lead author, Zhen Wan, said in a statement. “
This low metal abundance indicates that these stars are very old, because the earliest star-forming elements were only hydrogen and helium, and the metal was later present. Based on this, the researchers believe they are the last of their kind, at least near this particular universe.
“We can track the spectrum of stars by measuring the different types of chemical elements detected in stars, just as we can track a person’s connection to their ancestors through DNA,” explains Dr Kyle Kuehn of the Lowell Observatory. It’s like finding someone whose DNA doesn’t match anyone else, alive or dead. This leads to some very interesting questions about the history of the cluster, which we have not noticed. “