Given that we can not really see the Milky Way from the outside, astronomers know a great deal about our home galaxy. You know the forest where we are and what is probably deep in their hearts (Spoiler: It's probably a supermassive black hole).
Now researchers at the University of Warsaw have created what they consider best The previous accurate 3D model of our galaxy shows that the Milky Way is far from being as flat as we can imagine. In fact, it's a spoiled, weird, wonderful mess.
The Milky Way is a spiral galaxy with bent arms that extend into space. Most representations of our galaxy show it is rather shallow, but data from the University's Optical Gravitational Lensing Experiment suggest the opposite.
The team that describes our galaxy as a less flat slice but rather as a "wobbly, uncooked" pizza crust "mapped the position of a particular star type called Cepheids. Cepheids are pulsating stars and it is easy for researchers to measure the distance between them and the earth. Using the data from 2,431
Scientists have not only studied the shape of our galaxy up to now, but also learned some interesting things about the stars they discovered along the way. It turns out that Cepheids usually appear in groups, and that could mean that they tend to form outbreaks.
It's difficult to say how our galaxy ended up shaky and weird, but the researchers have some ideas. It is possible that the interactions between the Milky Way and other galaxies – or even dark matter – are to blame.