Photo roundup: Chicagoans saw the Northern Lights last night

The city’s skyline got upstaged last night—and it wasn’t by fireworks this time. A rare geomagnetic storm sent neon streaks of pink, purple and green across the sky, as the Northern Lights appeared over the city and the suburbs.

According to ABC7 meteorologist Cheryl Scott, the spectacle is a result of coronal mass ejections—giant bursts of energy from the sun—that collided with the Earth’s magnetic field, resulting in auroras that are usually only ever seen above the Arctic Circle. Some colors were still visible before sunrise early Wednesday morning.

The best part? It may not be over yet. Forecasters say there’s a chance for another round tonight or before dawn tomorrow.

Below, check out some of the most jaw-dropping shots that locals snapped of the Aurora Borealis lighting up the Midwest: