"It's actually a nova burst, it can actively release a nova burst!" Everyone was incredibly shocked upon hearing this.
A nova is not some new celestial body; it is a phase of a star.
When a star is dying, it will expel all its matter and energy. It's a violent nuclear explosion caused by the hydrogen accumulated on the surface of a white dwarf star being heated by the high temperature of the white dwarf.
In the past, astronomers mistakenly thought this was a brand new star, so they called it a nova.
But in reality, it's the funeral of a star!
In just a few days, its brightness can increase by more than ten thousand times, and its luminosity can reach a hundred thousand times that of the sun!
The energy accumulated over millions of years by a star can be all released in these days!
After the nova burst, the radiation and energy it generates can even trigger the formation of new stars in distant space-time!
