Interstellar Medium
- Interplanetary space - Interplanetary medium - interplanetary dust
- Interstellar space - Interstellar medium - interstellar dust
- Intergalactic space - Intergalactic medium - Intergalactic dust
Read more about this topic: Galactic Astronomy
Famous quotes containing the word medium:
“Memory is not an instrument for exploring the past but its theatre. It is the medium of past experience, as the ground is the medium in which dead cities lie interred.”
—Walter Benjamin (1892–1940)
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