A massive eruption of solar material, known as a coronal mass ejection or CME, was detected escaping from the sun at 11:36 p.m. EDT on March 12, 2023.
The CME erupted from the side of the sun opposite Earth. While resarchers are still gathering data to determine the source of the eruption, it is currently believed that the CME came from former active region AR3234. This active region was on the Earth-facing side of the sun from late February through early March, when it unleashed fifteen moderately intense M-class flares and one powerful X-class flare. Based on an analysis by NASA’s Moon to Mars Space Weather Office, the CME was clocked in traveling at an unusually fast 2,127 kilometers (1,321 miles) per second, earning it a speed-based classification of a R (rare) type CME.