The general tendency is for galaxies to move away from each other, in other words, the Universe is expanding. Only in our "immediate neighborhood" will you also find some galaxies that move towards us.
The phrase "to occur by chance" means to happen randomly or unexpectedly without any deliberate intention or planning. A word that encapsulates this idea is "coincide," which refers to events or circumstances that happen simultaneously or by chance. Another term could be "serendipity," which describes fortunate discoveries made unexpectedly.
An adverb describes(qualifies) an verb. e.g. The dog barked (No adverb; ) The dog barked loudly ( Adverb).
An adverb describes a verb, an adjective or another adverb.
An antonym is a word that describes the opposite of another. An antonym for blame is forgive.
Rectangular is an adjective and so there is no noun in the question.To put it another way, a rectangular what?
Galaxies generally move away from one another.
The force that causes galaxies to move away from one another in the universe is called dark energy.
Not generally, but galaxies do collide sometimes. In fact, the Andromeda Galaxy will probably collide with the Milky Way in about 3 billion years or so. In the collision, stars are often "flung" from one galaxy to the other, or thrown out of the original galaxy entirely. Follow the link below to see what happens when galaxies collide!
spril
Yes !
The general tendency is for galaxies to move away from one another - the further apart they are, the faster they move away from one another. In other words, the Universe is expanding. Galaxies also have some "random" proper movement, which can be thought of as superimposed on this general expansion.
A random galaxy is used in the "Correlation function" [See Link] to describe the possibilities of another galaxy being found within a certain distance.Given a random galaxy in a location, the correlation function describes the probability that another galaxy will be found within a given distance.See related for types of galaxies.
You can also distinguish them by the types of stars - older stars versus younger stars, and stars of different "metallicity".
Randomly unless there is an external force (a flow) in which case they move randomly relative to one another but in one direction as a group.
They collide with one another and tend to spread out randomly.
See Star wars. :)
It is possible to discover new galaxies.