The universe has endlessly fascinated researchers for centuries.
Think about us. The human race and planet Earth are one very small part of something which we struggle to understand, if we even understand it correctly. All those planets, stars, galaxies, the objects which defy the rules of physics and break scientific boundaries.
As if the universe wasn't mad enough already, new research suggests galaxies within its ever-increasing expanse could become transparent.
Two papers, published by an assistant professor at the University of California and several collaborators, suggested that the universe has enough energy to achieve transparency. The study marks the first time that researchers have investigated how gas content within galaxies compares with the amount of interstellar dust floating around in space.
In short, it explains why some galaxies are visible and others less so. Analysis found some parts of a galaxy have little gas and are directly visible, whereas other parts have a lot of gas and are effectively opaque, due to ionizing radiation.
It's a key finding, a clue into discovering how galaxies formed in the aftermath of the Big Bang - the cosmic event theorised to have created the universe.
The results of the study can be found here.