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 ...

A series of three powerful flares and associated explosions of solar material out across the Solar System have set Earth squarely in the path of a "severe"-level geomagnetic storm. According to models ...

Microscopic crystals extracted from meteorites could help settle a debate about the birth of our patch of the Milky Way.

Nearly 4.5 million years ago, two enormous, blazing stars swung close to the solar system. They did not touch the sun, but they came close enough to leave a permanent mark on the thin mist of gas that ...

Last month, Earth was treated to a massive aurora borealis that reached as far south as Texas. The event was attributed to a solar storm that lasted nearly a full day and will likely contend for the ...