- 2-Million-Light-Year-Long Galactic Emission Looks Like Jet Afterburner http://www.wired.com/wiredscience/2012/10/galactic-jet-afterburner/ 5 comments science
- How long is a galactic year? https://www.livescience.com/how-long-galactic-year.html 11 comments space
- Astronomers have discovered a A galactic-scale gas wave in the solar neighborhood. This star-forming region is just 500 light years away, and 2,000 light years long https://www.bbc.com/news/science-environment-51021704 4 comments science