factually
Index/Topics/Bubble Collisions in Eternal-Inflation Scenarios

Bubble Collisions in Eternal-Inflation Scenarios

The search for bubble collisions in eternal-inflation scenarios and their potential imprints on the cosmic microwave background (CMB).

Fact-Checks

1 result
Jan 14, 2026
Most Viewed

What observational signatures would a bubble‑collision in the CMB produce and have any been reliably seen?

Bubble collisions in eternal‑inflation scenarios would leave large, azimuthally symmetric imprints in the cosmic microwave background (CMB) — roughly disk‑shaped temperature and polarization modulatio...