Supernova

A supernova (/ˌspərnvə/ plural: supernovae /ˌspərnv/ or supernovas, abbreviations: SN and SNe) is an event that occurs upon the death of certain types of stars.
Supernovae are more energetic than novae. In Latin, nova means "new", referring astronomically to what appears to be a temporary new bright star. Adding the prefix "super-" distinguishes supernovae from ordinary novae, which are far less luminous. The word supernova was coined by Walter Baade and Fritz Zwicky in 1931.[1]
 
Only three, Milky Way naked-eye supernova events have been observed during the last thousand years, though many have been seen in other galaxies using telescopes. The most recent directly observed supernova in the Milky Way was Kepler's Supernova in 1604, but two more recent supernova remnants have also been found. Statistical observations of supernovae in other galaxies suggest they occur on average about three times every century in the Milky Way, and that any galactic supernova would almost certainly be observable with modern astronomical telescopes. 

https://en.wikipedia.org/wiki/Supernova 

SN 1994D (bright spot on the lower left), a Type Ia supernova outshining its home galaxy, NGC 4526

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