(CBS SF) — A second strong solar storm this week is predicted to slam Earth Wednesday, causing fluctuations in the power grid and GPS while sparking bright auroras across the world.

According to SpaceWeather.com, a “coronal mass ejection” erupted Monday and is expected to hit the Earth with electromagnetic radiation starting Wednesday at about 10 p.m. PDT and until Thursday.

At the same time, a geomagnetic storm that began Monday continues to rage on at severe levels, pushing glowing polar auroras to places where most people can easily see them.

NOAA forecasters said the Northern Lights may be able to be seen Tuesday night as far south as Nebraska and Indiana. But the second solar storm could continue dazzling skywatchers in both Northern and Southern hemispheres until Thursday night.

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Here are some of photos of Tuesday night’s auroras, starting with this shot taken NASA astronaut Scott Kelly from the International Space Station.

Wisconsin:

The Aurora Borealis may drift as far south as Iowa and Penn. tonight, as a severe solar storm continues to hit Eart… pic.twitter.com/SYYcrkOgAb — Hombre GQ (@HombreGQ) June 23, 2015

Massachusetts:

Another one from last night! The starry heavens were putting on quite the show. #milkyway #aurora #adventure pic.twitter.com/IBv4wFnqKa — Geoff B (@zerogguy) June 23, 2015

Colorado:

Aurora Borealis in Colorado. pic.twitter.com/quGYfmJNPS — Kassandra ter Beek (@kamterbeek) June 23, 2015

Iowa:

New York:

Georgia:

I caught the #Aurora in Georgia, VT last night just before midnight! The sky exploded in light! pic.twitter.com/3SulvSmc2z — Jeremy Gilchrist (@jgilchristmusic) June 23, 2015

Ireland:

Aurora over Clare Island lighthouse at 00:55 this morning. @Aurora_ireland pic.twitter.com/LB35v7pu8R — Kelvin Gillmor (@kelvingillmor) June 23, 2015

Australia:

[#VIDEO] La majestuosa aurora austral sorprende en los cielo nocturno australiano http://t.co/YI8XVeI5cB pic.twitter.com/EGRmqExQdE — Veo visione Futuro (@3_ges) June 23, 2015

Canada:

A spectacular solar storm showing the Aurora Borealis seen from Acadia Beach, BC, Canada. [… http://t.co/8KkYYoFtlg pic.twitter.com/QKT7JfxRY4 — Skylovers United (@SkyLoversUnited) June 23, 2015

Norway:

"Aurora borealis seen from Norway pic.twitter.com/yeklvxFmae" — Pariscity75 (@pariscity75) June 23, 2015

Space Station