NASA has no active defense against citykiller asteroids, scientists warn
Feb 18, 2026
Space officials say tens of thousands of near-Earth asteroids capable of demolishing cities remain untracked -- and humanity currently has no way to deflect them.
https://www.washingtontimes.com/news/2026/feb/18/nasa-no-active-defense-city-killer-asteroids-scientists-warn/
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