When you buy through links on our articles, Future and its syndication partners may earn a commission.X-class flare eruption on June 30. . | Credit: NASA SDOA restless Earth-facing sunspot unleashed a powerful X-class solar flare on June 30, triggering radio blackouts across parts of North America.The X1.1 solar flare erupted from sunspot region AR4479, peaking at 4:50 p.m. EDT (2050 GMT)
