 *The full trail of galaxies, with an inset image of DF9 taken by the Hubble Space Telescope. Credit: Keim et al. (2026)/DECaLS/HST*](https://www.universetoday.com/article_images/YN_DF9-drak-galaxy_20260630_213243.jpg)
SpaceMore in Space→
Third dark-matter-free galaxy adds to astronomy puzzle
Key Takeaways
- Astronomers report DF9 as the third known galaxy that appears to lack dark matter.
- DF9 sits alongside DF2 and DF4 in a linear structure of seven galaxies about 45 million light-years away.
- The galaxy’s estimated mass is consistent with visible matter alone, based on stellar motions.
- The finding supports the idea that some galaxies may form through an extreme collision-driven process.
DE
DT Editorial Team··via universetoday.com