No matter in which direction we look, all of the galaxies outside of our "local cluster"
are moving away from the earth. And get this ... the farther a galaxy already is
from us, the faster it's moving away from us.
It looks as if we're in the center of everything, and everything is spreading out and
moving away from us. On the other hand, no matter where in the universe an observer might be, it would appear to them that they were at the center, and everything was moving away from them.
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.
they are moving in all directions away, toward, sideways relative to EarthNearly all galaxies are moving away from the Earth. This is because the universe is expanding.
Other galaxies are moving away because the universe is expanding, but we are not at the centre of the universe.
No.More specifically:Not all galaxies are moving away from each other. The Milky Way and Andromeda galaxies are moving towards each other (and at a pretty good clip, too: about 300 km/s). The entire "local group" of galaxies is moving in the general direction of something called the "Shapley Supercluster".Very distant galaxies do tend to be moving away from each other, but that means the universe is expanding, not contracting.
Away.
Nearly all galaxies are moving away from our galaxie and planet.
It would mean that the universe was radially static. That is, no galaxy was moving towards or away from the earth. This could happen if everything in the whole universe were moving in the same direction at the same [linear or rotational] velocity.
No. They do move away one from another, due to the expansion of the Universe.
If the Universe was shrinking the galaxies would appear to be moving towards the Earth, and look more blue than they should. This is the opposite to the universe expanding where galaxies would appear to be moving away from the Earth, which we know due to "red shift". Andromeda would be the exception since it's directly moving towards the Milky Way.
Actually, most galaxies are all moving away from all other galaxies, not just from ours. The exception is the Andromeda galaxy, with which the Milky Way is on a collision course.
The most important thing that Hubble discovered was that our universe is expanding. He could see this because he noticed that galaxies were moving apart (which he figured out by their red shifting). In fact, the expansion of our universe is speeding up and galaxies are moving apart faster and faster.
No, the growth of the universe is caused by the galaxies moving away from each other, with no relation to their size.