elliptical galaxy help please??

Question

Could someone please help me on this question. i'm so stuck on it.. Thanks,

Think about the elliptical versus the spiral(an elliptical shaped galaxy is an oval, kind of like an egg.). Take a stab at explaining how a spiral over time and due to the effects of gravity, might eventually becomes an elliptical galaxy. *Remember, gravity is the resultant effect of the gravitational attraction between two masses.

Thanks so much

Answer 1

Most modern thoughts are that ellipticals are the result of collisions between two or more spirals.