Many people believe
that a supernova is a
nuclear exploded star.
But that is just an opinion.
Here's what I know.
A star lasts about 10,000,000
years before the star no longer
have more fuel, and the gravity
then got weak and explodes.
The Star gets bigger
and the gravity gets
Each day, the star loses 350 billion
tonnes. The mass is gone, and the
gravity loses hydrogen.
Once the core has turned to iron, it can
burn no longer. The star collapses by its
own gravity and the iron core heats up.
The core becomes so tightly packed that
protons and electrons merge to form