Geomagnetic storm

The northern lights were seen across Wyoming, Minnesota, Wisconsin and Montana, and faintly above Nebraska.

Northern lights were spotted across the U.S. despite no coronal mass ejection being detected hitting the atmosphere.

The CME was detected on the far side of the sun traveling at 3.4 million mph, a speed that indicates the CME may have been very powerful.

X-class is the most powerful type of solar flare, 1 million times stronger than a nuclear bomb.

The solar event may lead to auroras glowing in the night sky.

A plume of solar protons spat out by the sun has accelerated towards the Earth, and were funneled down into the polar regions by our magnetic field.

STEVE usually appears during geomagnetic storms but is a different process to the formation of the northern and southern lights

The northern lights were spotted as far south as California due to a severe G4 geomagnetic storm pummeling Earth's atmosphere and magnetic field.

A severe G4 geomagnetic storm, triggered by a coronal mass ejection from the sun, led to the spectacular aurora borealis being seen across North America.

The northern lights appear redder further south, due to observers only being able to see the top of the light show.

The northern lights painted the night sky green across the northern parts of the U.S. and Canada, and were even seen as a faint pink as far south as New Mexico.

Solar tornadoes can have wind speeds of up to around 310,000 miles per hour, as opposed to the 300 mph top speed of tornadoes on Earth.

Solar Cycle 25 is defying expectations it would be as inactive as the previous cycle, as sunspot numbers are already reaching Solar Cycle 24's maximum levels.

The spectacular red lights in the sky were caused by a G3 geomagnetic storm interacting with Earth's atmosphere.

Sunspot AR3190 is covering around 25 millionths of the solar disk, while the Earth would cover 169 millionths of the sun's surface.

The sun spat out a rare X1.9 flare on January 9 from one of three large and unstable sunspots.

The AR3182 sunspot has developed an unstable "beta-gamma-delta" field, making it more prone to spewing out violent X-class solar flares.

Five large sunspots have appeared on the Sun's surface, and are facing towards the Earth, putting us in the line of fire for solar flares and CMEs.

Sunspot AR3141 erupted around midnight on November 7, sending high-energy X-rays racing toward Earth.

The explosion far surpassed the Earth in size. "I tracked it nearly a million miles out into space," astrophotographer Andrew McCarthy wrote on Reddit.

The phenomenon could mean that more auroras are visible across the northern hemisphere as the fall equinox approaches this month.

The video shows a view from the International Space Station as it traveled around 270 miles above the Indian Ocean toward the Coral Sea east of Australia.

The Northern Lights may occur over some northern U.S. states Sunday due to charged particles from the sun interacting with Earth's magnetic field.

The stream of solar wind is expected to cause a moderate geomagnetic storm on Sunday, possibly sparking auroras over some states.

Sunspot AR3089, which is pointed at the Earth, may be about to eject a powerful X-class solar flare.

A cannibal coronal mass ejection from the sun, which overtook and combined with another CME, is due to hit Earth.

In the wake of a powerful plasma ejection from the Sun's surface, the Northern Lights are forecasted to be visible over parts of the United States.

The eruption, known as a coronal mass ejection, may cause a minor geomagnetic storm and some active auroras.

Northern lights could occur in states such as New York and Washington due to mild-to-moderate geomagnetic storms on Friday and Saturday.

A huge "full-halo" solar ejection is headed straight for Earth, and will result in spectacular auroral displays on July 23.