The Evidence for Planet Nine’s Existence I NOVA I PBS
hiJxgfBVGr8 • 2019-06-27
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Kind: captions
Language: en
[Music]
everything that planet 9 does to our
solar system is done by gravity so it's
the gravitational influence of Planet 9
that we are basically reading it
here what we see in purple these are the
huge orbits of the distant Kuiper belt
objects they all kind of lie in the same
plane they're all arranged into the same
overall directions so that something is
gravitationally shepherding them them
this object is planet nine
[Music]
standing up and saying we think there's
a ninth planet is a pretty dramatic
thing to say and if we were going to say
that we didn't want to be bald in fact
since the time even of Percival Lowell
and even earlier people have been
talking about new planets and new
planets and new planets and they're
always wrong 450 years if you stood up
and said I think there's a new planet
you were wrong
Planet 9 and the most sort of surprising
thing it tilts the entire solar system
by about six degrees with respect to the
Sun Planet nine could very naturally
explain
yet another population of distant bodies
that planet 9 predicts is objects called
centaurs that orbit out of the plane of
the solar system they're perpendicular
to the planetary orbits
the fact that these objects have been
observed and they really are there is
one of the strongest lines of evidence
we have towards the true existence of
Planet 9 itself there is now a laundry
list of things that Planet 9 does that
we see it is inconceivable to me that
there is not a Planet nine out there
there are just too many things that were
previously unexplained the Planet nine
naturally explains
[Music]
[Applause]
the astronomical confirmation of the
existence of Planet 9 would be the first
real expansion of the Suns planetary
album in a hundred and seventy years it
would completely redefine our scale of
what the solar system really
[Applause]
[Music]
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