Gravity and inertia, mainly.
Over time - billions of years - galaxies will merge with other galaxies. In about 3 billion years, the Andromeda galaxy will merge with our own galaxy, the Milky Way.However, the separation between galaxies is so great, that not all galaxies will merge unless the fundamental issue of the amount of mass in the Universe is determined.If we live in a "contracting universe" then eventually all galaxies will merge.
"Merge" and "separate" are antonyms. "Merge" means to combine or join together, while "separate" means to divide or detach.
Merge and separate are antonyms.
Nope - merge and separate are opposites of each other.
Galaxies get bigger by a process of merging. The gravitational attraction of the galaxy and the dark matter round it pull in satellite galaxies and these merge with the main galaxy. Eventually large galaxies merge to form large elliptical galaxies. look at the link below.
The answer to this is we do not know but it looks unlikely.The expansion of the universe appears to be speeding up. Local Galaxies might merge into larger galaxies but these galaxies will expand faster and faster away from each other.
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Antonyms of "merge" are separate, divide, or disconnect. Synonyms for "separate" include divide, detach, or segregate.
They are antonyms. Merge means to go together; separate means to part ways.
Not just dwarf galaxies. Giant elliptical galaxies lie likely the result of many galaxies, small and large, merging.
Antonyms. "Merge" means to combine or unite, while "separate" means to divide or disconnect.
Merge and separate are antonyms. "Merge" refers to combining or joining together, while "separate" means to divide or keep apart. These opposing actions highlight their contrasting meanings in relation to unity and division.