When galaxies collide, each of the individual stars in one galaxy will smash into an equivalent star in the second galaxy.

Question

Quizplus · Accepted Answer

When galaxies collide, most of the stars pass by each other without directly colliding due to the vast distances between them. However, the gravitational forces in the galactic collision can cause gas and dust clouds to collide and trigger star formation, leading to the creation of new stars in the merged galaxy. Some stars may be ejected from the galaxies due to the gravitational interactions, and a small number of stars may collide directly, but it is rare compared to the total number of stars present.

When Galaxies Collide, Each of the Individual Stars in One