NASA Space Alerts(@NASASpaceAlerts):It’s #SunDay! Here’s your space weather report for the week of Aug 21 - 27: • 8 M-class flares • 3 C-class flares • 32 coronal mass ejections • 0 geomagnetic storms This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s activity. Active region AR14513 — the bright cluster of activity that has made its way across the Sun’s disk this week, appearing in the center at about 2:10 in this video — produced all but two of this week’s flares, though none reached X-class. The strongest flare in this period was an M6.9, also produced by AR14513, appearing at about 1:57 in the video. It still has a few more days on the Earth-facing side of the Sun, so we'll keep watch! More about solar eruptions and space weather:

2026.08.30 16:00

It’s #SunDay#! Here’s your space weather report for the week of Aug 21 - 27: • 8 M-class flares • 3 C-class flares • 32 coronal mass ejections • 0 geomagnetic storms This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s activity. Active region AR14513 — the bright cluster of activity that has made its way across the Sun’s disk this week, appearing in the center at about 2:10 in this video — produced all but two of this week’s flares, though none reached X-class. The strongest flare in this period was an M6.9, also produced by AR14513, appearing at about 1:57 in the video. It still has a few more days on the Earth-facing side of the Sun, so we'll keep watch! More about solar eruptions and space weather: