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The Local Interstellar Cloud (LIC, aka Local Fluff) is a region of about 30 light-years across, which the solar system is passing through, that is slightly more dense than the Local Bubble in which it sits. Both have high temperatures (kinetic energy of their particles), but very low density, limiting the effects of the high temperatures. Their characteristics are a subject of research, the following being example cited values:
| density | temperature | radius | |
| Local Interstellar Cloud | 0.3 atoms/cc | 7,000 K | 15 ly |
| Local Bubble | 0.05 atoms/cc | 1,000,000 K | 150 ly |
Given the Sun's position and velocity within the cloud, its trip through the LIC will total on the order of 100,000 years.