How does gas cycle through galaxies?

Multiple supernovae can create huge bubbles of hot gas, which blow out of the galactic disk. Gas clouds cooling in the halo can rain back down onto the disk. These collisions may trigger future star formation. As the hot gas cools, electrons combine with protons to form clouds of atomic hydrogen (H).Click to see full answer. Similarly one may ask, how is gas recycled in our galaxy?– Gas from dying stars mixes new elements into the interstellar medium, which slowly cools, making the molecular clouds where stars form. – Those stars will eventually return much of their matter to interstellar space.Secondly, are galaxies still forming? Massive Galaxies are Still Forming. These new galaxies are relatively close to us, ranging from two to four billion light-years away. They may be as young as 100 million to one billion years old. The Milky Way is approximately 10 billion years old. Considering this, how are the galaxies formed? One says that galaxies were born when vast clouds of gas and dust collapsed under their own gravitational pull, allowing stars to form. The other, which has gained strength in recent years, says the young universe contained many small “lumps” of matter, which clumped together to form galaxies.How are the cycles of matter on earth similar to the cycles of matter in the galaxy?The cycles on Earth are similar with the star-gas-star cycle in our galaxy because in both cycles, some material is transported in cyclic form. In the cycles on Earth, it is water and carbon dioxide, and dust carried by water. Galaxy cycles keep the rate of birth of new stars, thus the activeness of the galaxy.

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