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By subscribing, you agree to our Terms of Use and Policies You may unsubscribe at any time. Life on Earth flourishes because of its magnetic field. But what happens when the growing number of satellite launches compromises this protective planetary shield? A recent study suggests the growing number of defunct satellites re-entering our atmosphere could impact Earth's magnetic field. Sierra Solter-Hunt, a plasma physicist, conducted this study, which was posted to the pre-print portal but has yet to be peer-reviewed. Our daily news digest will keep you up to date with engineering, science and technology news, Monday to Saturday.