A. They form a black hole.
B. They merge because of the strong gravitational pull they exert on each other.
C. They shred each other into smaller galaxies.
D. They form a supernova.
E. They repel each other away because of their strong gravitational pull.
B. They merge because of the strong gravitational pull they exert on each other.
C. They shred each other into smaller galaxies.
D. They form a supernova.
E. They repel each other away because of their strong gravitational pull.
