Brilliant splashes of green, purple, and pink illuminate the night sky for stargazers in North America, as energized particles from space interact with the Earth’s atmosphere. This dazzling effect, known as the Northern Lights or aurora borealis, will be visible on Saturday and Sunday night. The National Oceanic and Atmospheric Administration (NOAA) states that the northern United States and much of Canada will have optimal views of this natural phenomenon.
The aurora can be best seen where it appears directly overhead, though it is visible from up to 1000 km away. Sightings are most promising just after sunset or shortly before sunrise, as the aurora is not visible during daylight hours.
According to NASA, these striking displays of lights are a form of space weather. High-energy particles from space collide violently with gas atoms in a planet’s atmosphere, near its magnetic pole, causing the spectacle. NOAA predicts that the geomagnetic storm responsible for this aurora will peak on Saturday night, offering the best chance to view the show.
For many, observing auroras can be a unique experience, especially for those not residing near the poles, where these events are common. In North America, auroras are most often viewed in March and November, although the reason behind this pattern remains unclear to scientists. Typically, auroras are most visible in northern latitudes such as Russia, Norway, Sweden, and territories like Greenland and Alaska.
NOAA underscores the beauty of the aurora as a nighttime phenomenon worth traveling to arctic regions to witness firsthand, providing a tangible way to experience space weather.
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