A moderate geomagnetic storm can cause minor issues for satellites, GPS signals and high-frequency radio communication. Some power grid systems in higher-latitude countries may also see small ...

The Sun’s magnetic poles are in the middle of an uneven, drawn-out reversal as Solar Cycle 25 moves through its solar maximum ...

Today (Feb. 17), an annular solar eclipse will commence its journey across a remote region of Antarctica where it will be visible to more penguins than people. The partial solar eclipse portion of the ...