The aurora borealis was viewable across Wisconsin multiple nights this week — and not for the first time this year.

During a close approach to the Sun, the European Space Agency’s Solar Orbiter watched that tipping point unfold in unusually fine detail. The spacecraft observed the M7.7-class flare—strong but still ...

Scientists watched a solar flare grow from tiny magnetic sparks into a violent plasma-raining avalanche on the Sun.

Some solar flares can result in coronal mass ejections (CMEs) – huge plumes of plasma blown off the sun's corona and into ...

Solar flares are characterized by intense bursts of energy and radiation from the Sun’s surface. In a matter of just a few ...

A record-breaking study into a giant sunspot that triggered Earth's biggest geomagnetic storm in more than two decades has revealed surprising new details about the explosive dark patch. The monster ...

The sun is not only our closest stellar neighbor, it's also the star we understand the most. As we've observed it over the centuries, we've learned that the sun is not an immortal constant. It goes ...

Add Yahoo as a preferred source to see more of our stories on Google. Coronal mass ejections from the Sun can cause geomagnetic storms that may damage technology on Earth. NASA/GSFC/SDO In May 2024, ...

The Van Allen radiation belts, massive regions of charged particles trapped by Earth's magnetic field, have become "fully charged" due to repeated solar storms. A space weather observer warns that the ...

Parker Solar Probe reached "perihelion," the nearest point to the sun in its orbit, on Dec. 13, 2025. Credit: ASA / Johns Hopkins APL / Steve Gribben illustration A NASA spacecraft is making a close ...

A powerful solar eruption is expected to hit Earth soon, according to a forecast from the National Oceanic and Atmospheric Administration's Space Weather Prediction Center. A coronal mass ejection -- ...