Nebula+by+Katelyn+Hampton

=== The most important thing about the Supernova is it is stellar. Supernovae are extremely luminous and cause a burst of radiation that often briefly outshines an entire galaxy before fading from view over several weeks or months. During this short interval, a supernova can radiate as much energy as the sun could emit over its entire life span. The explosion expels much or all of a star's material at a velocity of up to 30,000 km/s (a tenth the speed of light). The most important thing about the Supernova is it is a stellar. -Info from []===