Although neighboring Andromeda Galaxy may look tranquil, scientists are realizing the extent of its tumultuous history. After taking the widest survey yet of faint stars in Andromeda’s neighborhood, a team of astronomers led by Alan McConnachie at the NRC Herzberg Institute of Astrophysics in Victoria, British Columbia, discovered signs of ancient mergers and near-collisions with smaller galaxies, all of which helped shape the Andromeda we see today.

Check out some of the archaeological traces in Andromeda Galaxy in the recent Astro Bulletin below.

To learn about other recent astronomical discoveries, visit the Science Bulletins website.

As the Cassini spacecraft orbits the Saturn system, it is showing astronomers that Saturn's largest moon, Titan, has many weather and geologic features that are similar to Earth's.

To learn about other recent astronomical discoveries, visit the Science Bulletins website.

Late last month, an amateur astronomer in Australia, Anthony Wesley, discovered a new impact "scar" on Jupiter left by a comet or asteroid. This Astro Bulletin highlights the flurry of follow-up telescope images taken of this rare event.

To learn about other recent astronomical discoveries, visit the Science Bulletins website.