Summary:

- The article reports on a new study from the Max Planck Institute for Extraterrestrial Physics (MPG) that has found the cosmic ray ionization rate in the local Milky Way is ten times lower than previously thought.
- Cosmic rays are high-energy particles that originate from outside the solar system and can ionize atoms and molecules in interstellar gas, affecting the chemistry and physics of the interstellar medium.
- The lower cosmic ray ionization rate has implications for our understanding of the interstellar medium and the formation of stars and planets, as cosmic rays play an important role in these processes.