Perhaps you mean "thought to be"? - It is believed that all, or most, galaxies have a supermassive black hole at their center.
Not all galaxies, but it is believed that the majority of galaxies have central black holes.
Elliptical galaxies are made of old stars and not very much gas or dust.
The galactic centre is the central region of a galaxy. Most, if not all galaxies have a supermassive black hole at their centre.
Almost every galaxy has a super massive black hole in its centre and this fact is widely accepted now days . Milky way galaxy also have a super massive black hole of its own, weighing more than 4 million times more than our sun's mass. Andromeda galaxy is our nearest neighbour having a super massive black hole in its centre weighing 114 million solar masses .
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.
they all contain billions of stars that orbit the center of the galaxy. all galaxies are also moving very slow.
Basically, all galaxies do. Or most of them.
Not all galaxies, but it is believed that the majority of galaxies have central black holes.
It is hypothesized that almost all galaxies have super massive black holes in their center.
Elliptical galaxies are made of old stars and not very much gas or dust.
Yes, However all galaxies are the same (simplified): A bunch of solar systems turning around a massive black hole. The forms are often very different, you have elliptical (elliptic formed) galaxies, spiral ("arms" from the center turning around it, circular) galaxies and irregular (irregular ;P) galaxies.
All galaxies are massive clusters of stars scattered across the universe. Many galaxies take the same form, for instance, spiral and elliptical galaxies. Some galaxies also have a black hole in their center.
It is believed that all galaxies have a black hole at their centers.
Other galaxies are moving away because the universe is expanding, but we are not at the centre of the universe.
ALL larger galaxies have a black hole in their center.
All galaxies are massive clusters of stars scattered across the universe. Many galaxies take the same form, for instance, spiral and elliptical galaxies. Some galaxies also have a black hole in their center.
Nearly all spiral galaxies, including our own, have such a feature.