The most intense solar flare since 2017 erupted on October 3rd, launching a coronal mass ejection (CME) towards Earth. Expected impacts include potential auroras and communication disruptions this weekend. Here’s the full scoop.
A Massive X9-Class Solar Flare
Last Thursday, October 3rd, the sun proved it still had tricks up its sleeve with an X9-class solar flare, the most powerful since 2017. Experts quickly noted that a coronal mass ejection (CME) was headed for our little blue planet. If you’re residing near the poles, get ready for some spectacular auroras. Unfortunately, for the rest of us, we might have to settle for potential radio disruptions, which are already being observed across Europe and Africa.
A Solar Cycle Full of Surprises
This flare is part of Solar Cycle 25, an eleven-year period during which solar activity fluctuates. We’re currently nearing the cycle’s peak, which explains the increase in sunspots and flares. Scientists are well aware of these cycles and keep a close watch on our star’s activities using satellites and instruments like those from NASA. When solar flares hit Earth, they can significantly impact communications and satellites.
Predicting Auroras Remains a Challenge
The beautiful phenomenon of the aurora borealis, visible at the poles, might make a comeback thanks to this flare. The CME, expected to reach Earth between October 5th and 6th, could trigger auroras in polar regions and possibly further south in latitude. However, predicting exactly where and when they will appear remains tough. The timing of these events is highly uncertain, with a margin of error that could be as wide as 12 to 20 hours. So, if you’re planning a picnic under the auroras, patience is key.
Impact on Our Communications and Satellites
Beyond the visual spectacle, this solar flare could disrupt communications. CMEs interfere with radio waves, especially those used for aviation and maritime navigation. Companies managing satellites are closely monitoring the situation to mitigate risks.
Quick question: during the last session of auroras in France, which happened last May, did you get a chance to see it? Or, have you ever experienced them in another country? Tell us about it!