0.0 0.5 1.0 1.5 2.0 0.2 0.4 0.6 0.8 1.0 Hr f ( r ) $^{f}$∞ 0.0 0.5 1.0 1.5 2.0 0.2 0.4 0.6 0.8 1.0 Hr rC ( r ) L 0.5 1.0 1.5 2.0 GLYPH<Minus>$_{3}$ GLYPH<Minus>$_{2}$ GLYPH<Minus>$_{1}$ 1 log ( HB ( r ) Hr 0.0 0.5 1.0 1.5 2.0 1 2 3 4 5 B ′ ( r ) HB ( r ) Hr FIG. 5: Parameters were chosen to demonstrate the smooth embedding of Witten’s bubble in a mildly AdS flux compactification. Dotted blue lines represent Witten’s solution of identical KK circumference 2 πL . Dashed red lines represent the pure flux compactification solution, as before. Near the bubble, the solution resembles that of Witten, while on scales larger than H − $^{1}$, the solution approaches the AdS compactification. V. CONCLUSIONS We have shown that a simple AdS$_{4}$ × S 1 flux compactification exhibits an instability to the nucleation of bubbles of nothing. The key feature of this geometry is the flux through the compactification cycle at the conformal boundary, which demands a source wherever the cycle degenerates. Appropriately, the field theoretic model considered has solitonic 2-brane solutions which are charged with respect to the axionic flux stabilizing the extra dimension. One can construct a bubble of nothing in this context as the spacetime sourced by an 12