Question

The #1 force that holds a galaxy together

Answer 1

The #1 force that holds a galaxy together is gravity. It attracts stars, gas, dust, and dark matter within the galaxy, preventing them from drifting apart. The combined gravitational pull of all the matter in a galaxy creates a stable structure, allowing stars to orbit around the galactic center and maintaining the overall integrity of the galaxy. Dark matter plays a significant role in this process, as it constitutes a large portion of a galaxy's total mass and helps to enhance the gravitational effects that hold the visible components together.