Astronomers have
discovered the largest recognized spiral galaxies and they have identified the
"skeleton" of the Milky Way. Our own Milky Way, most likely, is a
spiral galaxy. Indeed, our solar system and the Earth are somewhere close to
one of his whiskers, pulled back the sleeves.
And almost 70% of the
galaxies closest to the Milky Way are a spiral. But despite their general
morphology of galaxies, such as our form and retain their characteristic
features, which remains a puzzle in astrophysics. Are their sleeves in spiral
galaxies? Whether they can appear and disappear over time?