For centuries, astronomers have been studying the Milky Way in order to get a better understanding of its size and structure. And while modern instruments have yielded invaluable observations of our galaxy and others (which have allowed astronomers to gain a general picture of what it looks like), a truly accurate model of our galaxy has been elusive
For example, a recent study by a team of astronomers from National Astronomical Observatories of Chinese Academy of Sciences (NAOC) has shown that the Milky Way’s disk is not flat (as previously thought). Based on their findings, it appears that the Milky Way becomes increasingly warped and twisted the farther away one ventures from the core.
The study that details their findings recently appeared in the scientific journal Nature, titled The study was led by Xiaodian Chen of
and China West Normal University.
To break it down, galaxies like the Milky Way consist of thin disks of stars that orbit around a central bulge once every few hundred million years. In this bulge, the gravitational force of hundreds of billions of stars and dark matter hold the galaxy’s matter and gas together. However, in the far outer regions of the galaxy, the hydrogen atoms making up most of the gas disk are no longer confined to a thin plane.