Hi Bill Nye the Science Guy.
I’m Aaron the Science Guy and I want to
know why does space go on forever?
Aaron the Science Guy.
Good to see you.
Why does space go on forever?
That’s a great question.
It’s a deep question and no one really knows
the actual answer to that.
Maybe you’ll be the one that figures it
out.
The nearest we can tell the farther we look
into space, the farther it seems to go.
With that said we can see that all the stars
are moving apart and so people have figured
out that they must have all been in one place
about 13.6 billion years ago.
And so people can observe light that we believe
is 13.5 billion years old.
But nobody knows what’s beyond that or if
it’s even a meaningful question to ask what’s
beyond that.
Like what would the world be like if there
were no world?
It would be different.
And so these are deep, deep questions and
the people who think about these questions
are called astrophysicists.
They study the motion of stars.
Physics is the study of motion and astro has
to do with stars.
So perhaps you will be an astrophysicist who
figures this out.
Cool question.
