This week's host is Sunne Dong. Few things we talked about:
1. Rings of stars found in the giant elliptical galaxy Centaurus A, results of "a violent event" of merging galaxies. Read the story here.
2. Looking cosmic rays in starburst galaxies, read the papers here and here.
3. A nova, V445, might become a SNa I in the future. Read more here.
4. LHC back to work. Read the news here.
5. Mystery remains unsolved: no flyby anomaly detected during Rosetta's swing-by. Read the story here.
6. Galaxy zoo: galaxy merger project available online. Try your luck here.