When Stars Die, Something Magical Happens In The Sky (Photo Credit: NASA)
Like we humans, twinkling stars in the observable universe too have a life and are mortal. It is during the last evolutionary stages of a massive star, some type of transient astronomical events occur wherein the white dwarf (star in its final stage) is stimulated into the track of nuclear fusion. This is the time when the star dies with a huge explosion, leaving the sky covered in magical illumination of light gas and dusts. To be precise, the primary object also known as progenitor merges to a black hole or neutron star or gets completely destroyed.
The course of action when a star dies and covers the sky with unbelievable illumination is known as supernova. It is to be believed that the optical sight of a supernova’s illumination is more powerful than an entire galaxy. The illumination effect of a supernova lasts several weeks or months in the sky.
As of now, only three supernova events have been observed through naked eye in the Milky Way Galaxy during the last thousand years. The most recently seen supernova in the Milky Way Galaxy was Kepler’s Supernova in the year 1604. However, leftovers of more recent supernovae have been discovered. According to the supernova events occurring in other galaxies, it is assumed that only three supernova occurs in a century in Milky Way Galaxy.
The list of some inte4resting facts about supernovas is as follows:
Interestingly, every second the sky is illuminated by one supernova. Nevertheless, only two or three supernova occurs in the Milky Way Galaxy. The most recent Supernova was observed in 1604 by Johannes Kepler.
It’s due to many complex reactions that happens during the supernova event, new chemicals are made, which includes helium, iron and uranium.
A single supernova is brighter than an entire galaxy and can release as much energy as the sun can in its 10-billion-year lifespan.