2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/1637Defect models of cosmic structure formation have faced a number of difficult challenges over recent years. Yet interestingly, new CMB data does not show strong evidence for secondary oscillations in the anisotropy power. Here I review the current standing of the cosmic defect models of structure formation in light of the current data.12 Pages including 4 figures. To appear in the proceedings of the XXXVth Rencontres de Moriond ``Energy Densities in the Universe''AstrophysicsHigh Energy Physics - Phenomenologytext