NASA reported that the Sun emitted two strong X-class solar flares, with peaks late April 23 and early April 24, both captured by the Solar Dynamics Observatory.
The alert is operationally useful because X-class flares can affect radio communications, navigation signals, electric grids, spacecraft operations, and astronaut exposure planning.
NASA identified the events as X2.4 and X2.5 flares and pointed readers to NOAA's Space Weather Prediction Center for effects at Earth, keeping the story focused on monitoring and response rather than spectacle.