Our galaxy is expanding and according to the cosmological principle, the further away a galaxy is the faster it is moving away. The galaxies are not getting further apart because they are moving through space but because space itself is expanding. Like raisins in rising dough. The raisins themsleves are not moving away from the other raisins but the dough itself is expanding, so every raisin sees the other raisins moving away from it.
Basically, his discovery was that most galaxies move away from us; and that the galaxies that are farther away, also tend to move away faster.
Galaxies generally move through space due to the expansion of the universe, which causes them to drift away from each other. This motion is observed as a redshift in light from distant galaxies, indicating they are receding. Additionally, galaxies can interact gravitationally, resulting in mergers or collisions, but the overall trend is that galaxies are moving apart as the universe expands.
In the late 1920s, the astronomer Edwin Hubble discovered that most of the galaxies he observed were moving away from Earth.
On the you tube. the galaxies are getting further away except Andromeda Galaxy. Most stars are now getting further because EX Andromeda galaxy will kill milky way and the other galaxies, the galaxies ran away carrying their ball.
The person who discovered the existence of galaxies outside of the milky way was Edwin Hubble. He also discovered that galaxies move away from each other with a constant acceleration, leading to the big bang theory.
Away.
That has nothing to do with the "type"; it is how far they are away from Earth. Due to the general expansion of the Universe, galaxies that are far way from us systematically move away from us - the farther away, the faster. It is only nearby galaxies which may happen to move towards us.
Basically, his discovery was that most galaxies move away from us; and that the galaxies that are farther away, also tend to move away faster.
The "redshift" refers to the fact that the light is less energetic than when it was emitted; it shows that the galaxies move away from us. Should a galaxy move towards us - which is possible only for galaxies that are relatively close to us - then there would be a blueshift.
Some nearby galaxies move towards us (blueshift), some move away from us (redshift). Galaxies that are farther away all move away from us (redshift); this means that the Universe is expanding.
That most galaxies move away from us; and that the general tendency is that galaxies that are farther away move away from us faster.
Galaxies generally move away from one another.
Away from us.
The force that causes galaxies to move away from one another in the universe is called dark energy.
Most move away from us, and each other.
Most galaxies move away from us - the farther they are from us, the faster they move away from us. This means that the Universe is expanding.
Yes !