Space weather experts in Colorado , US issued a warning on a solar flare . It was the biggest eruption of the year and peaked at GMT ##day . It has already caused severe blackouts on Earth and a minor geomagnetic storm could occur tomorrow . This flare was emitted from Active Region 7 ( AR12297 ) on the planet .
Space weather experts in Colorado , US issued a warning on a solar flare . It was the biggest eruption of the year and peaked 4.22pm GMT yesterday . It has already caused radio blackouts on Earth and a minor geomagnetic storm could occur tomorrow . This flare was emitted from Active Region 12297 ( AR12297 ) on the sun .