Where did today?s spiral galaxies come from?

Hubble shows that the beautiful spirals galaxies of the modern Universe were the ugly ducklings of six billion years ago.

If confirmed, the finding highlights the importance to many galaxies of collisions and mergers in the recent past. It also provides clues for the unique status of our own galaxy, the Milky Way.


The astronomers think that these peculiar galaxies did indeed become spirals through collisions and merging. Although it was commonly believed that galaxy mergers decreased sig [...]

Full story at http://spacefellowship.com/news/art18392/where-did-today-s-spiral-galaxies-come-from-.html