NASA's Solar Dynamics Observatory, which observes the sun 24 hours a day, captures this image of an X-class solar flare at 7:42 a.m. ET Tuesday, June 10. X-class flares are the most powerful.
NASA cameras captured images of what the agency is calling at least two “significant” solar flares. The first one peaked at 7:42 a.m. ET Tuesday, followed by a second, lesser blast at 8:52 a.m. ET.