NASA Space Alerts(@NASASpaceAlerts):It’s #SunDay! Here’s your space weather report for Oct. 2-8: • 4 M-class flares • 1 C-class flare • 23 coronal mass ejections • 1 geomagnetic storm This video from NASA’s Solar Dynamics Observatory shows the week’s activity. The week’s strongest flare, an M6.7, erupted Thursday, Oct. 8, and appears at about 2:58 in the video. The eruption also sent a coronal mass ejection toward Earth. As of Friday, Oct. 9, forecasters at the National Oceanic and Atmospheric Administration’s Space Weather Prediction Center expect it to arrive Sunday, Oct. 11. It could trigger a geomagnetic storm or strengthen one already underway. If you’re in the northern U.S. or Canada, keep an eye out for auroras! More about solar activity:

2026.10.11 16:00

It’s #SunDay#! Here’s your space weather report for Oct. 2-8: • 4 M-class flares • 1 C-class flare • 23 coronal mass ejections • 1 geomagnetic storm This video from NASA’s Solar Dynamics Observatory shows the week’s activity. The week’s strongest flare, an M6.7, erupted Thursday, Oct. 8, and appears at about 2:58 in the video. The eruption also sent a coronal mass ejection toward Earth. As of Friday, Oct. 9, forecasters at the National Oceanic and Atmospheric Administration’s Space Weather Prediction Center expect it to arrive Sunday, Oct. 11. It could trigger a geomagnetic storm or strengthen one already underway. If you’re in the northern U.S. or Canada, keep an eye out for auroras! More about solar activity: