Huge Solar Storm of 2012 Would Have Sparked Calamity on Earth

The big solar storm of 2012 was one for the record books. On July 23, 2012, a massive cloud of solar material erupted off the Sun's right side, zooming out into space and passing one of NASA's twin STEREO spacecraft along the way. Scientists clocked this giant cloud, known as a coronal mass ejection, or CME, as travelling over 1,800 miles per second as it left the Sun. This was the fastest CME ever observed by STEREO. Luckily, it was moving in a direction safely away from Earth. The harshest spa

NASA: Earth almost got hit by a solar storm that could’ve left millions without power

Strong geomagnetic storm reaches Earth, continues through weekend

Severe geomagnetic storm watch issued: What to know

Geomagnetic storm slams into Earth, triggering vivid Northern Lights display in northern US

How NASA Tracked the Most Intense Solar Storm in Decades - NASA Science

Sun coronal mass ejections leading up to last week's solar storm