The Sun emitted two strong solar flares, the first peaking at 9:07pm ET on April 23 and the second peaking at 4:13am ET on April 24. NASA’s Solar Dynamics Observatory captured images of the events, which were classified as X2.4 and X2.5: Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth’s atmosphere to physically affect humans on the ground. However — when intense enough — they can disturb the atmosphere in the layer where GPS & communications signals travel. To see how such space weather may affect Earth, check out @NWSSWPC, the U.S. government’s official source for space weather forecasts, watches, warnings, and alerts.

🔴 Lebanon and Israel have extended their fragile US-brokered ceasefire for 45 days, despite violent flare-ups between the two countries After a third round of “highly productive” negotiations in Washington, the April truce would be prolonged “to enable further progress”, the US state department said 👇

It’s #SunDay#! Here’s your space weather report for the week of May 8 - 14: •1 M-class flare •1 C-class flare •31 coronal mass ejections •0 geomagnetic storms This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s activity. The active region we spotted last week (which erupted with an M-class flare and a CME last Sunday) has moved across the Sun and is now center-disk. It’s right next to a coronal hole that unleashed a stream of fast solar wind to Earth. We’ll be watching both regions for continued activity this week. Learn more about space weather:

It’s #SunDay#! Here’s your space weather report for the week of May 1 - 7: •2 M-class flares •2 C-class flares •29 coronal mass ejections •1 geomagnetic storm This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s activity. It has been a relatively quiet week on the Sun, with the two M-class flares erupting off the Sun’s western limb (right side from SDO’s view) and not producing much impact on Earth. However, a large active region will soon be rotating into Earth’s view — you can see it toward the end of this video emerging from the eastern limb (left side from SDO's view). Keep an eye out in the coming week for potential solar activity! Learn more about space weather:

It’s #SunDay#! Here’s your space weather report for the week of April 24 - 30: • 2 X-class flares • 14 M-class flares • 18 coronal mass ejections • 0 geomagnetic storms This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s solar activity. Two X-class flares erupt on the right side of the disk at the beginning of the week. On April 29, a few spacecraft calibration maneuvers make it look like the Sun is dancing. Find out more about flares & coronal mass ejections:

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: Learn more about space weather:

It’s #SunDay#! Here’s your space weather report for the week of April 10 - 16: • 30 coronal mass ejections (CMEs) • 0 M-class flares • 0 C-class flares associated with CMEs • 0 geomagnetic storms This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s activity, which was very quiet. Some C-class flares did occur on the Sun during this period, but none were associated with coronal mass ejections (CMEs) or other space weather events, so they are not reported here. Active region AR4419 first rotates onto the solar disk from the eastern limb (upper left edge) at about 1:20 into the video, then comes alive with lots of crackles and bursts starting at about 2:00 and continuing through the end. Its activity contrasts with the two other active regions on the Sun, AR4415, which moves across the Sun’s equatorial region, and AR4416, in the upper hemisphere, both of which showcase steadier, smoother brightenings of coronal loops. We’ll be watching all of these regions of possible activity in the coming week.

It’s #SunDay#! Here’s your space weather report for the week of April 3 - 9: •7 M-class flares •1 M-class flares •16 coronal mass ejections •1 geomagnetic storm This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s activity. This week’s geomagnetic storm peaked on April 3, sparking auroras around the arctic circle and reaching a strength classification of G3 (strong). The cause was a CME that erupted from the Sun late on April 1. Aside from that, the Sun was fairly quiet during this reporting period. Learn more about space weather:

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