Exploring the chilling prospect of a large meteoroid hitting Earth, this article takes an in-depth look at the potential disaster and far-reaching implications, akin to the cataclysm that ended the reign of the dinosaurs. The immediate destruction – thermal radiation, mega-tsunamis, and seismic activities – would give way to long-term effects like an ‘impact winter’, biodiversity loss, and severe disruption to human civilization. Yet, in our unprecedented technological capabilities lies a glimmer of hope – with timely detection and the right strategies, such a cosmic disaster could potentially be averted