Good question! The Sun is an immense source of
energy for the Solar System, and anything
catastrophic would certainly effect all of the
System and our lives in it. The Sun has an
extremely hot and dense core, composed of mostly
hydrogen and helium, which nuclear fusion occurs.
This reaction releases an intense amount of
energy, light, and heat, only a fraction of which
hits our Earth and is absorbed.
If a terrible event caused the Sun to
“explode” or to break apart, then the loss of
density would stop the fusion reactions. The
consequences would be that the material in the
Sun would scatter and all life on Earth would be
drastically affected. Eventually, perhaps
millions of years into the future, the matter may
come back together and some new star system might
form. Interestingly, scientists predict that in
the future when the Sun runs out of fuel for
fusion, it will grow dramatically to become a
This process billions of years into the future
would cause the first few planets (Mercury, Venus,
and possibly Earth) to crash into the surface of
the new Red Sun.
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