NASA releases images of a mid-level solar flare emitted by the sun.
NASA's Solar Dynamics Observatory captured images of the sun emitting a mid-level solar flare on Wednesday, April 2. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however when intense enough, they can disturb the atmosphere in the layer where GPS and communications signals travel. The images were released by NASA on Saturday (April 5).