What causes the Northern Lights?
The Northern Lights are caused by collisions between charged particles from the sun and Earth's atmosphere.
Earth & Space / Space Weather
Get ready for a potential celestial display! A geomagnetic storm watch is in effect, raising the possibility of viewing the Northern Lights across a large swath of the northern United States. This is due to a coronal hole on the Sun emittin...
The current geomagnetic activity is driven by a coronal hole high-speed stream (CH HSS). These streams result from less dense areas in the Sun's corona, allowing charged particles to escape and travel towards Earth. When these particles collide with Earth's atmosphere, they excite oxygen and nitrogen atoms, causing them to emit light. The colors depend on the type of atom and the altitude of the collision.
**Viewing Tips:** * Find a location away from city lights. * Look towards the northern horizon. * Use a smartphone's night mode to enhance visibility. * Check the National Weather Service's sky cover forecasts for cloud conditions.
The Northern Lights are caused by collisions between charged particles from the sun and Earth's atmosphere.
A coronal hole is an area on the Sun with cooler, less dense plasma that allows solar wind to escape.
The best time is typically between 10 p.m. and 3 a.m. local time, when the sky is darkest.
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