Geomagnetic storm

Aurora does not have to be directly overhead to be visible: it can be observed from more than 600 miles away if the conditions are right.

"You'd see this structured—almost like a patch—grey-toned or white toned-emission connected to the aurora," said researcher Emma Spanswick.

A geomagnetic storm is expected this weekend when an burst of plasma and magnetic field from Sun will glance off Earth.

Powerful eruptions from the sun are likely to interact with Earth's atmosphere on New Year's Eve, causing auroras in some locations.

A festive auroral display may be put on for a lucky few when coronal mass ejections hit Earth on Christmas Eve and Christmas Day.

"Even the most extreme solar events are part of the sun's natural repertoire," a researcher said.

The Aditya-L1 spacecraft is designed to watch the sun for any ejections of plasma that may hit Earth and damage power grids.

A G1 geomagnetic storm may hit tomorrow evening, with a G2 storm following in the early hours of November 29.

A value called Bz indicates how far south the solar wind's magnetic field is pointing, which can predict how likely the northern lights are to occur.

"Sunspots are complex magnetic regions of the sun where energy can be stored in huge amounts," astronomer Peter T. Gallagher said.

Revolutionary space-based coronagraph provides unprecedented views of solar storms that could impact Earth.

A new sunspot named 3856 is facing Earth and has an unstable "beta-gamma-delta" magnetic field.

This stunning light show was triggered by a G4 geomagnetic storm caused by a plume of solar plasma ejected from the sun.

Star gazers can expect more glimpses of the northern lights as the sun reaches its solar maximum, causing more geomagnetic storms.

The G4 geomagnetic storm that brought auroras across the U.S. also generated electrical currents in rocks under the ground.

"Navigation systems, especially those relied upon in disaster relief, may be degraded," NOAA's Space Weather Prediction Center said.

A "severe" solar storm is set to hit the Earth at any moment, with auroras visible across the U.S. tonight.

"The aurora may become visible over much of the northern half of the country, and maybe as far south as Alabama to northern California," NOAA predicted.

Two strong solar flares in the space of 48 hours will bring stunning auroras to northern states and the Midwest over the next few days.

A coronal mass ejection from the sun is expected to trigger a G3 geomagnetic storm, causing the northern lights.

The X7.1-class flare is the second-most powerful this solar cycle—and an associated eruption could cause aurora in the coming days.

The Earth is prone to more geomagnetic storms during the spring and fall equinoxes than throughout the solstices.

Coronal mass ejection from the sun at the same time as a recent X4.5 solar flare is about to collide with the Earth.

The northern lights may light up the sky above states as far south as New York and Idaho thanks to a strange ejection from the sun.

The aurora lit up the night above Lake Erie on Sunday, with shooting stars from the Perseids meteor shower zooming through the pink and green skies.

G2 geomagnetic storms are forecast tonight, following yesterday's G4 storms that sparked spectacular aurorae around the globe.

Auroras may seen as far south as New York, Idaho and even in the Midwest thanks to a coronal mass ejection from the sun's surface.

"The aurora may become visible over some northern and upper Midwest states," the Space Weather Prediction Center said in a forecast.

G2 geomagnetic storms are set for July 31 and August 1, maybe with northern lights over states as far south as New York and Idaho.

Illinois, Oregon and more northerly states may see the aurora tomorrow as solar storms slam into our planet's magnetic field.