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Stormy SunCredit: Solar Dynamics Observatory/NASAGoddard Spaceflight Center & the AIA ConsortiumThings are heating up on our nearest star, as a powerful solar storm blasts particles toward Earth today (Jan. 24). Early on Jan. 23, a massive eruption blew out from the sun, an event called a coronal mass ejection. The eruption sent charged particles barreling toward Earth, which can disrupt satellite transmissions and cause problems for power grids if officials aren't prepared.

Galaxies M31, M32 and M110

Most Detailed Look Ever Into the Carina Nebula

east coast / nasa

Stunning Space WeatherCredit: Atli Arnarson, atlapixThe northern lights glow an otherworldly green above southwest Iceland on Jan. 22, boosted by an especially active sun. Auroras, visible mostly at very high and very low latitudes, occur when charged particles from the sun hit atoms in the upper atmosphere, creating curtains of light which often shift and undulate. "The show on the 22nd was the largest I've seen in recent years, maybe in the last 20 years," photographer Atli Arnarson told LiveScience. "The pictures don't really do it justice. They were quite active at times, and danced across the sky