the National Oceanic and Atmospheric Administration 's releases images of `` significant '' solar flares recent years . The second peaks at 7:42 a.m . ET , with a second , lesser blast at 7:42 a.m . ET . The explosions might disrupt high-frequency radio communications on Earth .
NASA releases images of `` significant '' solar flares Tuesday . The first peaks at 7:42 a.m . ET , with a second , lesser blast at 8:52 a.m . ET . The explosions might disrupt high-frequency radio communications on Earth .