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deep in the outer reaches of the solar
system could be lurking the hypothetical
planet 9 in part one we looked at why
scientists think the planet might exist
where it could be hiding and what it
might be like to stand on its rocky
surface we saw a bizarre volcanic world
scarred with fire and flowing rivers of
lava while ice and snow blanket its
landscape but scientists do not think
that this mysterious world is made of
rock as the early inner solar system did
not have enough material during its
formation to form such a giant rocky
world that may have been ejected into
the outer zones so could it instead be a
world made of ice maybe a massive
version of Pluto if planets 9 is made of
ice it would be the biggest object ever
formed in the Kuiper belt region
potentially 10 times the mass of Earth
so if this elusive world does exist and
we had the technology to travel to and
explore its surface what would it be
like to stand on an icy planet 9 much
like on a rocky planets 9 the brave
exploring astronauts would have to wear
special spacesuits as this strange world
travels as far out as 1,200 au from the
Sun making the icy planets 9 one of the
most frigid places in the solar system
possibly colder the minus 226 degrees
Celsius their suits would also have to
protect them from the planet's intense
gravity that could be many times that of
Earth's looking across an icy planets
night
the Explorers multiple exotic ice
mountain's and sharp ridges towering in
the distance they might see valleys and
smooth regions with ice floes both into
and out of ancient basin
the mysterious landscape would look like
rock but it is actually water ice that's
frozen harder than granite because
planets 9 orbits so far from the Sun
distant galactic explosions that cause
cosmic rays and stellar winds would
crash into the strange world potentially
causing the formation of complex
molecules on it's icy surface
these may include organic tholins that
would cause rich colors such as a deep
orange earthy Browns and possibly a deep
blood-red similar to what can be found
on the surface of Pluto due to planet
9th colossal mass heat would generate
deep under its surface causing water ice
to spew out of volcanoes the brave
astronauts standing on this icy wall
might see hundreds of these eruptions
far into the distance causing snow to
fall from the sky as water ice freezes
in the coldness of space and settles
back down to the surface standing on an
icy planet nine would be a truly
magnificent experience but scientists
are unsure whether such a giant world
could exist in the Kuiper belt region as
every object that has ever been
discovered there so far are icy small
bodies probably because there wasn't
enough material left over in the outer
reaches of the solar system that could
form large planets such as the
hypothetical planet 9 so if science
suggests that planet 9 couldn't have
formed in the rocky inner solar system
and that it also couldn't have formed in
the icy outer regions then where might
it have come from if it does exist could
it be a rogue planet that once orbited
another star or could it actually be the
fifth giant gas planet in our solar
system find out in part 3
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I really hope you enjoyed this video
make sure to come back and watch part 3
of this series and in the meantime why
not check out some of my other videos
thank you so much for watching and I'll
see you next time
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