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hello and welcome to space and this
month were taking you out to the

farthest reaches of our solar system to
this place the dwarf planet Pluto it

turns out to be far more weird than
anyone ever expected with all kinds of

unexplained phenomena on the surface we
sought out some of Europe's finest ice

planet experts to find out more Pluto
has been a mystery since it was

discovered in 1930 first called a planet
then reclassified as a dwarf planet in

2006 the more we learn the more it
captures the imagination of scientists

like esa's Elliot slept and gnash one of
the important things you should

understand about Pluto is the real scale
of it compared to the rest of the solar

system so you come to the beach to
really convey that step

scale and distance so if I draw the Sun
as a 30 centimeter circle then we have

to walk about 35 steps this way in order
to draw the earth in the same type of

so the Sun is over there 30 centimeters
which means that the earth should be

about here about 3mm use something like
this if we were to draw Pluto in the

same scale it should be zero point three
millimeters and it should be one

kilometer down the beach
now obviously I can't draw something
that's point three millimeters so I have

to draw Bluto a bit bigger if this is
Pluto then its largest moon is Sharon

which is about half its size the Pluto
has four other moons Styx Nix Kerberos

and Hydra so there's a lot going on
around the Pluto system it's not just a

cold dead icy Rock humanity had its
first close-up view of Pluto in 2015

when NASA's new Horizons probe flew past
the dwarf planet and it smooth as it

witnessed was unlike anything we'd ever
seen before

scientists working on new horizons like
Bernau Schmitz and Tanguy Bertram were

spellbound they were seeing a distant
world that didn't resemble the rocky

planets earth or Mars nor the gas giants
Jupiter and Saturn Pluto is different

on you I when New Horizons arrived at
Pluto we were struck by the topography

why because you've mountains that reach
up to four kilometers high and you have

the huge basin which is three kilometers
below the average surface height those

are enormous topographical differences
for a small body like Pluto instability

in on earth one go to the key consider
the six gigabytes of images and

scientific measurement slowly sent back
by New Horizons are now filling in the

gaps in our knowledge of Pluto what the
team is finding as they dig into that

data is the world dominated by ice then
our and Tonchi took us to a frozen lake

near Grenoble and cleared the snow to
allow us to compare what we see here on

earth with what has been discovered on

like Leslie eating less water right here
is close to zero degrees it's like in

all the glasses here in the outdoor
Kelly although it's relatively soft it

flows and forms glass peers who are
pre-dawn it's on Pluto this water is at

minus 230 degrees Celsius and it's as
hard as rock

sure so on Pluto its water that forms
the mountain ranges in more than yet so

the mountains on Pluto a water right
occasionally dappled with patches of

methane frost while the huge
heart-shaped glacier on its surface is

made from nitrogen scientists think
Pluto has strong seasonal cycles too

which could explain some of the unusual
features on its surface adequate that

the Equator is an enigma there are no
volatile ices it's just the base of

water ice covered in a kind of soot this
black material that's produced by the

photolysis of the ice by UV rays so
there's a huge contrast between the dark

zones of the Equator and the bright
areas in the north and this gigantic

glacier of nitrogen ice dust besides

that Glacia known as Sputnik planet is
thought to be under a million years old

a remarkably young age by planetary

nobody has agreed on an explanation for
how it was formed and how its renewed

understanding Pluto can really help us
understand the solar system as a whole

so scientists think there's a strong
case to go there again

I think it would be fantastic to send a
lambda to really understand first of all

the structures and the mineralogy up
close but also to observe it over a

longer time period because we've only
seen Pluto and very you know an instant

of its orbit and so there might the
seasonal changes might be very dynamic

if we could watch it for a whole year
okay when you're a strange place and so
you really want to stimulate this world

do experiments try to understand how it
works because there's a kind of climate

there's an atmosphere on Pluto there are
Isis but it's not at all like Earth

paneer and planet was nobody imagined
we'd find such a dynamic planet so far

from the Sun and were left with a lot
more questions but a space mission that

poses more questions than it answers
Quran is a successful miss lacy just a

few years ago Pluto and its moons were
nothing but a few pixels in our

telescopes mysterious docks in the
asteroid belt beyond Neptune now we know

it better and were curious to know more
away from Pluto now and to our new
miniseries legends of space throughout

2017 were celebrating 60 years since
Sputnik by looking at some of the

greatest moments in space exploration
and this month we looked at April 1961

when Yuri Gagarin became the first man
in space

which last time
when I just got you got you

Rodolphe cap
I'm always impressed when I look at the

latter giggling how harder laughs you
had a head and it came from a very

modest family the young man he was 27
years of age when he did to his flight

on the 12th of April 1961 it is they not
know possession disease quítate it was

an extremely risky operation and that's
what we loved about his background

opinion I was young just 24 and it
seemed extraordinary the and it was

Jagga he stands very high in the mind of
astronauts and cosmonauts and in the

International Space Station you have a
portrait of Gagarin who is there and

looking at all of the occupants of Isis
Dulli the realty the success and then
Gagarin's charisma he was likable he was

young he was the son of a potato farmer
so he wasn't perfect for Khrushchev it

was a real demonstration of what a
Soviet astronauts can be because with it

and that's what also muted
that's all for now you can watch other
episodes of legends of space and keep up

to date with other news from the
universe on our website on euronews calm

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92 Folder Collection
Keto648 published on December 24, 2017
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