Look Up Tonight! The Northern Lights May Glow Across the Sky
Quick Summary
A burst of material from the Sun is heading toward Earth right now. It could create a beautiful light show called the aurora borealis — also known as the northern lights — tonight and early Saturday morning. Scientists say some people in the northern United States and Canada have a chance to see it!
What Happened?
Three days ago, on September 28, the Sun sent out a large cloud of charged particles into space. Scientists call this a coronal mass ejection, or CME. Think of it like a giant sneeze from the Sun — a puff of magnetic energy and tiny particles shooting outward at about 500 kilometers every single second.
That cloud is now reaching Earth today, October 2. It is not hitting us directly. Scientists say it will deliver a glancing blow — like a ball gently grazing the edge of something rather than crashing straight into it.
NOAA, the United States agency that watches the weather in space, issued what is called a G1 watch. A G1 storm is the mildest kind of geomagnetic storm. It just means Earth’s magnetic bubble — called the magnetosphere — gets a little stirred up.
When that happens, particles from space zoom down toward the North and South Poles and crash into gases in our atmosphere. Those collisions make the sky glow in beautiful colors. That glow is the aurora!
The best places to look tonight are places close to Canada, like Alaska, Montana, Minnesota, Michigan, and Maine. If the storm grows slightly stronger, people even farther south — in places like New York or Colorado — might catch a glimpse too.
The best time to look is after dark, with clear skies and as little artificial light around you as possible.
Why Does It Matter?
The northern lights are one of nature’s most breathtaking shows. They remind us that the Sun and Earth are always connected in ways we cannot see. Scientists also study auroras to understand how solar storms can affect satellites, GPS systems, and radio signals on Earth. Studying space weather helps keep astronauts and technology safe.
A heart-shaped coronal hole — a cooler, open region on the Sun’s surface — is also facing Earth right now. Fast solar wind from that hole is expected to arrive around October 3, which could bring more aurora chances in the days ahead.
Big Words
- Aurora borealis — the northern lights; colorful glowing lights in the night sky near the North Pole, caused by particles from the Sun hitting Earth’s atmosphere
- Coronal mass ejection (CME) — a giant cloud of charged particles and magnetic energy blasted off from the Sun’s surface
- Geomagnetic storm — a disturbance in Earth’s magnetic field caused by a CME; scientists rate them G1 (minor) to G5 (extreme)
- Magnetosphere — the invisible magnetic bubble that surrounds Earth and protects us from harmful solar particles, like a giant invisible shield
- Coronal hole — an area on the Sun’s surface where its magnetic field opens up and lets fast solar wind escape into space
Fun Fact
The southern version of the northern lights is called the aurora australis. People in Antarctica and parts of southern South America and New Zealand can sometimes see that one!
Think About It
If you could travel to a planet with no magnetic field, you would never see an aurora there — but you also would not be very safe from the Sun’s energy. Why do you think Earth’s magnetic shield is so important for life?
Sources
- EarthSky — Sun news: Heart-shaped coronal hole facing Earth? (Oct 1, 2026)
- The Watchers — September 28 CME expected to deliver glancing blow to Earth on October 2, geomagnetic storm forecast (Sep 30, 2026)
- Forbes — Northern Lights Forecast: 11 States May See Aurora Thursday And Friday (Sep 30, 2026)
- SpaceWeather.com — A CME IS COMING—MAYBE TWO: A G1 geomagnetic storm watch is in effect (Sep 30, 2026)