AURORA OUTBURST: Last night, for the second night in a row, sky watchers around the Arctic Circle witnessed an impressive display of auroras.
It began when a seemingly minor solar wind stream hit Earth’s magnetic field. Then whoosh! The minor hit turned into a not-so-minor display when a crack opened in the earth’s magnetic field, allowing the solar wind to pour through the breach and fuel the storm.
Challenging conventional wisdom, a new study finds that the earth was bombarded last year with high levels of solar energy at a time when the Sun was unusually quiet and sunspots had virtually disappeared,
On September 2, a billion-ton coronal mass ejection slammed into the earth’s magnetic field. The glow awoke campers in the Rockies in the middle of the night, who thought the sun was rising. But no, it was the Northern Lights.
13 Apr 10 – A sudden geomagnetic storm from the Sun increased from geomagnetic K-index 4 to a number 7 (out of a possible 10) in just three hours – the strongest such storm in the past 18 months.
Duck! Plasma bullets are zinging past Earth. That’s the conclusion of researchers studying data from NASA’s five THEMIS spacecraft.
A network of cameras deployed around the Arctic has made a startling discovery about the Northern Lights.