It’s #SunDay! Here’s your space weather report for the week of April 17 - 23:
•6 M-class flares
•0 C-class flares
•34 coronal mass ejections
•1 geomagnetic storm
This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s activity. Two X-class flares erupted right after the end of this reporting period — they’ll be first up in next week’s space weather report!
Another thing we *don’t* see here: comet PANSTARRS (C/2025 R3)! The comet is currently passing between the Sun and Earth, and ESA/NASA’s SOHO spacecraft is watching the comet as it streaks across the view of its C3 coronagraph. We'll share more views of that comet later; in the meantime, check the latest imagery here: soho.nascom.nasa.gov/data/LATEST/current_c...
Learn more about space weather: science.nasa.gov/heliophysics/focus-areas/...