Astronomers have always considered intergalactic violence to be a part of the process through which large galaxies tend to grow. A new survey suggests that some distant galaxies rip up and devour their smaller galaxy neighbours. Milky Way and Andromeda galaxy are known to be cannibals, spiral and closest to each other.
Our Solar system consists of the stars, the Sun, and all the planets that orbit around it including the Earth. It also includes numerous moons, asteroids, comets, rocks and dust. The Sun is simply one star amongst the hundreds of billions of the stars present in the Milky Way Galaxy.