The primary building material for the emerging young stars, which are created during the process of gravitational gas collapse, is the so-called neutral hydrogen contained inside gaseous space clouds. The abundance of this element is directly related to the star formation rates in all galaxies and certainly is one of most important factors deciding the galactic evolutionary processes. As the new stars form, the resources of neutral hydrogen are gradually depleted, meaning that a galaxy enters its ‘adult’ phase of life. However, the formation of stars isn’t the only way for a galaxy to lose the gas reserves: sometimes this happens due to a massive… theft.
Read the full story →