Missed the northern lights? You may still have a chance to see them, says scientist
CBC News・5 minutes read
A powerful solar storm caused the Northern Lights to be visible in northern China, the most severe geomagnetic storm in over two decades. Solar storms involve coronal mass ejections from the Sun, impacting Earth's magnetic field and extending the auroral oval to lower latitudes, potentially affecting critical infrastructure and technology near Earth.
Insights
- Solar storms, like the recent one causing the Northern Lights, result from coronal mass ejections (CMEs) from the Sun, affecting Earth's magnetic field and extending auroras to lower latitudes.
- The severe geomagnetic storm from the solar event in China highlights the potential risks to critical infrastructure like satellites and power systems, emphasizing the importance of monitoring and preparing for such events as solar maximum approaches in 2025.
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Recent questions
What caused the recent Northern Lights display?
Solar storm triggered geomagnetic storm, leading to auroras.
How do solar storms impact Earth's technology?
Solar storms can disrupt satellites, power systems, and communications.
When is the next opportunity to witness the Aurora?
Another chance to see the Aurora is expected tonight.
What are the potential risks of solar storms?
Solar storms can impact critical infrastructure and technology.
How often do severe geomagnetic storms occur?
Severe geomagnetic storms occur infrequently, with the recent event being the most significant in over two decades.
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Summary
00:00
Solar Storms Trigger Northern Lights Display
- A powerful solar storm led to a rare celestial event, making the Northern Lights visible to more people than usual in parts of northern China. It is the most severe geomagnetic storm in over two decades, potentially causing communication disruptions in the coming days or weeks.
- Solar storms, like the recent one triggering the Northern Lights display, involve coronal mass ejections (CMEs) from the Sun, with this event being the most significant since October 2003. The CME interacts with Earth's magnetic field, causing geomagnetic storms that extend the auroral oval to lower latitudes.
- Concerns arise from solar storms impacting critical infrastructure and technology near Earth, such as satellites, power systems, and high-frequency communications. Another chance to witness the Aurora is expected tonight due to a recent CME, with the active region on the Sun potentially offering more opportunities as solar maximum approaches in 2025.
