What causes the Northern Lights?
The Northern Lights are caused by the interaction of charged particles from the sun with Earth’s magnetic field, resulting in collisions with oxygen and nitrogen atoms in the atmosphere.
Science / Space
A geomagnetic storm watch issued by NOAA indicates that the Northern Lights may be visible in up to 20 U.S. states on Tuesday, March 31, 2026. This is due to a recent X1.5-class solar flare and coronal mass ejection.
The National Oceanic and Atmospheric Administration (NOAA) has issued a geomagnetic storm watch, signaling the potential for strong Northern Lights displays across a large portion of the United States. This event is triggered by an X1.5-class solar flare that erupted from sunspot AR 4405, resulting in a coronal mass ejection (CME) headed towards Earth.
The CME, a cloud of charged particles, is expected to interact with Earth’s magnetic field, causing geomagnetic disturbances. These disturbances can result in auroras, commonly known as the Northern Lights. NOAA’s aurora view line suggests that the lights may be visible in up to 20 U.S. states, particularly those near the Canada border.
For optimal viewing, it is recommended to wait until the moon is down and to seek out locations with minimal light pollution. Using a light pollution map&ref=yanuki.com and a Dark Sky Place Finder&ref=yanuki.com can help identify suitable locations. Keep an eye on NOAA’s 30-minute aurora forecast&ref=yanuki.com and SpaceWeatherLive.com&ref=yanuki.com for the latest updates on space weather conditions.
The Northern Lights are caused by the interaction of charged particles from the sun with Earth’s magnetic field, resulting in collisions with oxygen and nitrogen atoms in the atmosphere.
The best time to view the Northern Lights is in the hours after dark, away from light pollution, and when geomagnetic activity is high.
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