Earth Defenceless Against Thousands of City-Killing Asteroids, Warns NASA
NASA scientists have issued a sobering warning about thousands of so-called city-killing asteroids that could one day threaten Earth. While space agencies continue to monitor the skies, experts admit that humanity is not fully prepared to stop a sudden impact if one were discovered at short notice.
In this video, we break down what these near-Earth asteroids are, why so many remain untracked, and how serious the risk really is. We also explore the limits of current planetary defence systems and what new missions are being developed to close the detection gap.
Is Earth truly defenceless, or is the danger being misunderstood? Watch until the end for the facts behind the fear and what scientists say keeps them awake at night.
