Spectacular Aurorae Erupt Over NorwayJan. 23, 2012 — Over the weekend, the Earth’s magnetic field was struck by a coronal mass ejection (CME). The CME — a vast bubble of solar plasma that had erupted from the sun on Jan. 19 — took longer than expected to travel through interplanetary space, but on Sunday it made contact.

Spectacular Aurorae Erupt Over Norway

Jan. 23, 2012 — Over the weekend, the Earth’s magnetic field was struck by a coronal mass ejection (CME). The CME — a vast bubble of solar plasma that had erupted from the sun on Jan. 19 — took longer than expected to travel through interplanetary space, but on Sunday it made contact.

(via suzywire)