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A Single Nuclear Explosion in Orbit Could Disable 99% of Satellites in a Matter of Days

Summary by Science Alert
High above your head, it's getting a bit crowded. In low-Earth orbit, more than 13,000...

6 Articles

Lean Right

A nuclear explosion in low-Earth orbit could render nearly all satellites useless within days. Radiation belts and debris would disrupt communications, weather, and internet services.

Simulations show that a nuclear explosion at an altitude of 500km could cause 99.4% of the approximately 13,300 low-orbit satellites to cease functioning after 15 days.

·Ho Chi Minh City, Viet Nam
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Satellite Damage Study: More than 13,000 satellites orbit the Earth, making them a vital part of our daily lives. Any damage to them will have a direct impact on the lives of ordinary people.

A nuclear explosion could paralyze almost the entire satellite network on Earth's low orbit in just 15 days, leaving people without the internet, weather forecast or phone calls, shows a study by American researchers.

·Bucharest, Romania
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Scientists warn that you should not repeat the mistakes of the past. Especially since now it will have even more disastrous consequences.

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Science Alert broke the news in Canberra, Australia on Thursday, November 12, 2026.
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