Learn how solar activity drives space weather, geomagnetic storms and auroras, and why these events matter for satellites and power systems.
Begin with clear explanations of the key ideas, discoveries and questions in this subject.
Auroras occur when energetic charged particles are guided by Earth's magnetic field into the upper atmosphere, where collisions with oxygen and nitrogen produce light. The northern display is called the aurora borealis; the southern.
A recent solar storm has created auroras that dance around Earth's north and south poles.
A powerful solar storm today could damage power grids, satellites and radio signals, but also produced stunning auroras over North America on Wednesd…
A geomagnetic storm is a prolonged disturbance of Earth's magnetosphere caused by enhanced energy transfer from the solar wind. The most significant…
A solar flare is a rapid release of magnetic energy in the Sun's atmosphere. Flares can brighten dramatically in X-rays and extreme ultraviolet radia…
Due to the geomorphologic impact of the big solar storm, many areas in the two hemispheres of the world can admire the phenomenon of aurora light yes…
Read recent ScienceInfo stories and explainers about Space Weather & Auroras.
Space weather describes changing conditions in the Sun, solar wind, magnetosphere, ionosphere and thermosphere that can affect technology and operations near Earth. It i…
Aurora forecasts combine measurements of the Sun and solar wind with models of Earth's magnetosphere. Scientists are not predicting a fixed light show at a precise stree…
The combination of the aurora borealis and the Perseid meteor shower is a rare and spectacular event that leaves many sky enthusiasts in awe.
An extremely rare black aurora borealis creates an E-shaped swirl of light in this recent image taken over Alaska.
Last weekend, many people in many parts of the world just needed to look up at the sky to see colorful aurora displays.
A sudden coronal mass ejection recently hit Comet 12P/Pons-Brooks, causing
The Carrington Event of 1859 gave us a foretaste of just how dire the Sun was to humanity. But it could turn out to be worse than we imagined.
Experts fear the new solar cycle will cause satellites flying in low orbit around the Earth to run out of fuel and fall through the atmosphere faster.
Continue with more articles, discoveries and explanations from this subject.
In the past week, people in Norway, Iceland and even the United Kingdom had the opportunity to admire the aurora north (aurora that took place in the Northern Hemisphere…
Some sun-level X flares erupted on our central star surface this week, and now their radiation is striking the Earth.
NASA satellite captures the moment when a solar storm erupts violently, making the aurora on Earth more brilliant in time for Halloween.
Astronomers are hoping for a cloudy sky over the next three days, because a powerful solar storm will shoot particles towards Earth and create a spectacular aurora.
A massive solar storm landed on Earth yesterday, creating spectacular aurora on most of the northern hemisphere's sky. On January 1, most of the sun opposite the Earth t…
According to CTV News, from the previous week, the sun began to release strong stable radiation streams, making the NOAA space forecasting center to issue a warning abou…
The US government is preparing to deal with a solar storm, which could devastate electricity networks around the world for months.
A solar storm, also known as a magnetic storm, is attacking the Earth and is at risk of crippling power networks and ground communications.
The US Aeronautics and Space Administration (NASA) has captured impressive images that show the sun has produced the strongest flare from the beginning of the year, and…
Scientists warn that one day the solar storm could collapse the Earth's communications network.
The light of aurora is generated by the interaction between solar particles and the Earth's atmosphere.
Super solar storms in 2012, if heading toward the globe, could knock down the electric networks on Earth and destroy the satellites on its way.