Astronomy and Geography
- Bulge (astronomy), a tightly packed group of stars at the center of a spiral galaxy
- Equatorial bulge, a bulge around the equator of a planet due to rotation
- Tharsis bulge, vast volcanic plateau centered near the equator in Mars’ western hemisphere
- Tidal bulge, a bulge of land or water on a planet created by the pull of another object in orbit
Read more about this topic: Bulge
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