NASA Sees Giant Solar Wave Erupt from the Sun

The sun celebrated May Day with a spectacular solar eruption Wednesday, unleashing a colossal wave of super-hot plasma captured on camera by a NASA spacecraft.

The solar eruption occurred over a 2.5-hour period Wednesday (May 1) and appeared as a "gigantic rolling wave" on the sun in a video recorded by NASA's Solar Dynamics Observatory, agency officials said in an image description. The solar eruption is what scientists call a coronal mass ejection (CME) — a type of sun storm that can fire off billions of tons of solar material at more than a million miles per hour, they added.