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How much did SpaceX's Starship Flight 7 explosion pollute the atmosphere?

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SpaceX's Starship megarocket may have released significant amounts of harmful air-pollution into the upper layers of Earth 's atmosphere.

The rocket's upper stage blew up at an altitude of around 90 miles ( 146 kilometers ) and weighed some 85 tons without propellant.

University College London atmospheric chemistry researcher Connor Barker posted the estimates on his LinkedIn profile shortly after the mishap.

The amount of metallic air pollution potentially produced in the accident equals that generated by one third of meteorite material that burns up in the atmosphere every year.