The sun emitted another powerful solar flare Tuesday nearly one week after separate flares set in motion a severe solar storm that disrupted some technology and produced some mesmerizing northern ...

Tree rings are not just a great record of a tree’s life, ... In 1859, less than a day after huge solar flares were spotted by astronomers, ...

The biggest flare of the series, recorded at a M7.3, erupted from sunspot region AR3938 on Dec. 25 at 10:15 p,m. EST (0315 GMT on Dec. 26). Solar flares are ranked and categorized by their power ...

Citations. Q. Zhang et al. Modelling cosmic radiation events in the tree-ring radiocarbon record. Proceedings of the Royal Society A. Vol. 478, October 2022. doi: 10.1098/rspa.2022.0497. F. Miyake ...

Editor’s note: This article was first published in 2023 and has been updated. Ancient semi-fossilized tree rings may hold the clues to the largest solar flare event ever known, which occurred ...

A NASA telescope has captured the biggest solar flare in years, which temporarily knocked out radio communication on parts of Earth. Scientists say Thursday's "amazing" solar flare was the biggest ...