Frigid air that normally stays in the Arctic has escaped, plunging deep into the United States for an extended visit that is expected to provoke teeth-chattering but not be record-shattering.

The images, captured on January 6 by the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument on NASA’s Aqua ...

A powerful X1.8 solar flare erupted on January 4, 2025, and was recorded at its peak—7:48 a.m. ET—by NOAA’s Solar Ultraviolet ...

A rare weather phenomenon rumbled across several eastern and central U.S. states this weekend as Arctic air continues to bring heavy snow and freezing temperatures to millions of Americans.

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

Last year gave skywatchers multiple stunning sky shows, including the total solar eclipse, the return of the “devil comet,” ...

More strong solar storms are still expected throughout 2025 and potentially even into 2026, giving us a greater chance of ...

Fast solar wind from a massive coronal hole in the sun could trigger dazzling auroral displays as geomagnetic activity is ...

San Antonio-based Southwest Research Institute received a $26 million contract from NASA and NOAA to develop magnetometers ...

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

Aurora chasers are on high alert for minor geomagnetic storm conditions on Dec. 25. Northern lights could be visible over ...

Get ready for a possible Christmas Day surprise. The National Oceanic and Atmospheric Administration (NOAA) Space Weather Prediction Center has issued a G1-minor geomagnetic storm watch for ...