When you look up at the sky on a sunny day, the sun might seem like a bright spot, unchanging in the sky. But the sun is a ...

Imagine standing on a snowy mountain ridge. A single fracture forms in the ice crust, or a small patch of heavy snow shifts just an inch. That tiny movement destabilizes the snowpack below, which ...

Over the past few days, an active sunspot has erupted multiple times, sending clouds of high-energy plasma into space. The sunspot happens to be facing Earth just now, so the plasma clouds are heading ...

Referred to as a “stealth storm,” a recent coronal mass ejection went undetected until it hit Earth. Stealth coronal mass ejections are more common after the Sun transitions from the solar maximum to ...

A volatile region on the Sun has just fired off a monster solar flare, followed by a blast of charged particles that space-weather scientists liken to a colossal “sun burp.” That outflow, a coronal ...

Just as avalanches on snowy mountains start with the movement of a small quantity of snow, the ESA-led Solar Orbiter spacecraft has discovered that a solar flare is triggered by initially weak ...