My name is Michael, and I am a graduate student
who studies physics and engineering. Thank you for
your question, “Is the world ever going to end?”
This is quite a powerful and philosophical
question, and I applaud your inquisitive mind.
Is the world ever going to end? The
answer, from the view of science is: Yes.
One day, the world is definitely going to end. But
the world will not end because of some ancient
Mayan prophesy, or because a giant asteroid hits
it, and the world will not end for a very long
time. Just like everything that inhabits our
world, the earth has its own lifetime.
How long is the earth’s lifetime? About
7.5 billion years— a very, very, very long time.
The universe that our world inhabits is about 13.8
billion years old, and the earth is roughly 4.5
billion years old, just to give you an idea of how
long the earth has left.
In one billion years, the sun is going to
start getting hotter and hotter. The sun is going
to run out of its hydrogen fuel source in its
core, and instead it will start burning hydrogen
around the shell of the sun. This will cause the
sun to expand larger and larger, until finally, in
about 7.5 billion years, the hot sun will consume
But the inevitable and fiery fate of the world
should not sadden you! There are no good stories
that I know of that do not have endings. Instead
of dwelling on the very, very distant fate of the
world, you should appreciate the delicate balance
of life that exists on our planet, and appreciate
those people and things around you that make life
that much more beautiful. Marvel at how science
can explain the awe-inspiring intricacies of our
universe, from the lovely smell of a flower to the
cosmic expanses of the universe. So go outside and
play defiantly in the face of the sun!
For tomorrow, when you wake up, the sun, the
moon, and the earth will all still be here,
waiting to be conquered.
P.S. If you would like to learn more
specifics about what will happen to the earth in
the coming eons, you can look through this
Wikipedia page on “The future of the Earth.”
future of the Earth
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