Categories Articles Sun smacks Earth with 2 powerful, back-to-back X-class solar flares, knocking out radio signals across the US Post author By crystalg Post date August 10, 2023 Business Insider Business Insider Tags Across, Backtoback, Earth, Flares, Knocking, Powerful, radio, Signals, smacks, Solar, XClass ← 7 Things You Need to Do to Make Your Email Marketing More Lucrative → The Pro-Choice Senate Candidate Whose Company Donates to Anti-Abortion Republicans