Spicule
Spicule is a jet phenomenon of 500 km diameter which appears in the sun in solar physics. It is widely ubiquitous in the colorful layer of the sun surface, rising from the light bulb at a speed of about 20 km / s. It is a basic structure that connects a light sphere and a corona. It was discovered by Angelo Sekki of the Vatican Observatory in 1877. "spicule" means "small protrusion". ...