supernovae {supernova}

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SUPERNOVAE HIND ALAWADI

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Page 1: Supernovae {supernova}

SUPERNOVAEHIND ALAWADI

Page 2: Supernovae {supernova}

What is a supernova?A supernova refers to a stellar explosion which means an explosion of the stars

. In star astronomy, the term 'nova' relates to 'new'. Because an explosion of stars triggers the birth of other stars due to expanding shock waves and explosion.

The very luminous burst of radiation is capable of hiding a whole galaxy in its shadows. It takes quite a few months before the last show of light-and-form extravagance actually fades from sight. During its lifetime, it is observed to radiate energy as much as is associated with the sun. In fact, research reveals that a single supernova is capable of emitting energy that the sun would otherwise radiate over its whole life span!

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HOW SUPERNOVAS ARE FORMED

A star can go supernova in one of two ways:

|Type I supernova: star accumulates matter from a nearby neighbor until a runaway nuclear reaction ignites.

|Type II supernova: star runs out of nuclear fuel and collapses under its own gravity.

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•On average, a supernova will occur about once every 50 years in a galaxy the size of the Milky Way. Put another way, a star explodes every second or so somewhere in the universe, and some of those aren’t too far from Earth•Supernovas can briefly outshine entire galaxies and radiate more energy than our sun will in its entire lifetime. They're also the primary source of heavy elements in the universe. According to NASA, supernovae are “the largest explosion that takes place in space.”

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THE ENDHOPE YOU HAVE A GALACTIC

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