Fifteen thousand city-killer asteroids remain undetected despite their catastrophic potential, yet NASA lacks the funding and readiness to deploy deflection technology even if threats were spotted. Current detection systems can't track mid-size asteroids hidden by sunlight, and no standby defense spacecraft exists to replicate successful deflection experiments. The U.S. must invest in surveillance telescopes and prepared response systems to defend humanity against complete annihilation.
Preventing catastrophic asteroid impacts is affordable: building an infrared space telescope to discover the most threatening near-Earth objects and demonstrating deflection technology could cost about $1 billion, roughly 1% of NASA's budget over five years. With such investments, humanity could catalogue and deflect many hazards long before they strike, turning astronomical risk into manageable planetary insurance for future generations worldwide.
Asteroid defense demands immediate global investment because a single impact could trigger nuclear winter lasting years, wiping out civilization when food supplies run dry within months. Early detection and deflection technology can save humanity by shifting trajectories when asteroids remain distant, but delay makes intervention exponentially harder. Planetary survival transcends politics and requires coordinated funding from all nations benefiting from protection.
© 2026 Improve the News Foundation.
All rights reserved.
Version 6.18.0