The Solar Dynamics Observatory, or SDO ... watching the sun and acting as an early warning for coronal mass ejections (CME) and other solar phenomena. Although L 1, the point between the Earth ...

NASA's Solar Dynamics Observatory just spotted a massive hole on the sun called a coronal hole. The hole appears black because it's cooler than its surroundings and is responsible for high-speed ...

A giant, black region of the sun — called a coronal hole — was spotted on Monday by NASA's Solar Dynamics Observatory. Despite the name, however, this isn't a physical hole in the solar ...

NASA’s Solar Dynamics Observatory caught this solar flare in action in 2017. Researchers believe that coronal mass ejections after such flares are the source of bursts of radiation. A new NASA ...

In this Solar Dynamics Observatory extreme ultraviolet image, the blue arrow marks a small bright point located at the edge of a coronal hole (outlined in red) that was the source of the phenomenon.

In this Solar Dynamics Observatory extreme ultraviolet image, the blue arrow marks a small bright point located at the edge of a coronal hole (outlined in red) that was the source of the phenomenon.