usually they are found near stars because of the gravitational pull
The other planets, stars, galaxies, meteors, comets, and asteroids.
who discovered the galaxies who discovered the galaxies
Meteors (two to three an hour on a typical clear night), comets on occasion, and if you have a good telescope, other galaxies and the occasional planetary nebula.
Because that is what galaxies are "made" up of.
All sorts of things. The Sun, the Moon, planets, asteroids, meteors, galaxies, nebulas, satellites and other things.
They are simply called "galaxies which are part of a cluster".
Meteors can only be found within the atmospheres of planets. If they are on the outside the atmosphere they are called Meteroids. And if they have already penetrated the surface of a planet they are called Meteorites.
Meteors that blow up are found in the mesosphere.
Yes.
Most galaxies, even our own, are found in groups or clusters. For example, the Local Group contains several galaxies including the Milky Way, Andromeda, and the Magellanic clouds.
Most of them are found at the center of the galaxies.
Nebulae are found in most galaxies