Get the latest Science News and Discoveries

Northern lights may be visible Thursday night as far south as Alabama and Northern California

The geomagnetic storm is the most severe since the one that led to dramatic auroras in May.

None

Related news:

Solar storm bombarding Earth now may reach 'extreme' levels, sparking auroras down to Alabama and straining hurricane-weakened power grids

'Severe' geomagnetic storm to slam Earth Thursday, with auroras possible as far south as California and Alabama

Solar Storm Could Bring Northern Lights and Power Concerns in the U.S.