Quick Read
The Local Bubble is a broad region around the Solar System with thinner interstellar gas than its surroundings.
Learn More
Its irregular boundary may extend at least roughly one thousand light-years across; the explorer uses one thousand light-years as a representative extent.
In Depth
Three-dimensional maps are inferred from absorption and interstellar-medium data, so the boundary depends on observations and models.
Scale measurement
1,000 ly · boundary
Quick facts
- It contains the Solar System.
- Its gas density is relatively low.
- Its boundary is irregular.
Related objects
- contains: Solar System
- located-in: Milky Way