The galaxies themselves are not expanding, and they're not all retreating out
from any central point. Every point in our Universe is moving away from every
other point, because the entire fabric of space itself is expanding, taking the
matter along with it. Thus, every observer at any point in our Universe observes
all other galaxies moving away from the point where he happens to be located.
No point can claim to be the "central" point.
It was Edwin Hubble, working at Caltech and the Mt. Palomar observatory, who
was able to compile the radial speeds of enough distant galaxies to demonstrate
the general expansion in every direction.
All the available evidence strongly indicates that the Universe is, indeed, expanding.
That's because the Universe really is expanding. It started as a "big bang", where all the matter and energy in the Universe was concentrated in a tiny space, smaller than an atom - at a tremendous temperature and pressure. From there it started expanding, and continues expanding to this day.That's because the Universe really is expanding. It started as a "big bang", where all the matter and energy in the Universe was concentrated in a tiny space, smaller than an atom - at a tremendous temperature and pressure. From there it started expanding, and continues expanding to this day.That's because the Universe really is expanding. It started as a "big bang", where all the matter and energy in the Universe was concentrated in a tiny space, smaller than an atom - at a tremendous temperature and pressure. From there it started expanding, and continues expanding to this day.That's because the Universe really is expanding. It started as a "big bang", where all the matter and energy in the Universe was concentrated in a tiny space, smaller than an atom - at a tremendous temperature and pressure. From there it started expanding, and continues expanding to this day.
The universe expanding in all directions.
It is not exactly expanding into anything. The galaxies are moving apart from each other, from which we can infer that the universe is expanding. Theoretically, this is a result of the Big Bang, in which the universe began when all matter was compacted into a very tiny sum, and then exploded apart in a very big bang, and as a result is still expanding today.
they all have stars.
The Universe keeps on expanding in all the sides so no one can really tell how high is the universe.
Steven hawking
Wherever you are located, it seems as if you are at the center of the expansion.
There is no specific planet or star at the center of the universe. The universe is constantly expanding in all directions from the Big Bang and does not have a central point. Each observer will see the universe as expanding away from them, giving the illusion of a center.
Other galaxies are moving away because the universe is expanding, but we are not at the centre of the universe.
universe. The universe encompasses all of space, including galaxies, stars, planets, and other celestial objects. It is vast and constantly expanding.
That would be a sign that the Universe is contracting, instead of expanding as it currently is.That would be a sign that the Universe is contracting, instead of expanding as it currently is.That would be a sign that the Universe is contracting, instead of expanding as it currently is.That would be a sign that the Universe is contracting, instead of expanding as it currently is.