A new pre-publish study suggests that the Milky Way is missing almost half of its regular matter compared to the rest of the universe.
suggests that the Milky Way is missing almost half of its matter. Researchers used the Deep Synoptic Array , a set of 110 radio dishes in California, to measure the amount of matter in the Milky Way’s halo.bursts we’ve seen coming from deep space
. The DSA then uses those bursts to trace them back to their home galaxies. A nice side effect of this, though, is that they can also calculate the amount of matter between those galaxies and the detector, as they did here with the Milky Way. To do this, they detect how much matter has absorbed the FRBs radiation. Think of it like shining a flashlight through the fog to determine just how thick it is. By doing this, the researchers were able to detect that the Milky Way’s matter stores are much lower than we expected them to be. In fact, there is 40 percent less matter in the Milky Way than there is in the universe.
It’s unclear exactly why the Milky Way has less matter than the rest of the universe, but it does continue to point out just how unique our galaxy is compared to others out there. As we dig deeper into the mysteries of the early universe, it’s likely we may find even more surprising information about our galaxy, and even our universe.
This also isn’t the only recent discovery we have made about the Milky Way. Scientists also recently discovered the
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