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Exoplanets and the quest for life beyond Earth | David Ehrenreich | TEDxYouth@IIL


the human mind has always been curious

the human mind has always been curious about what lies beyond its reach what

about what lies beyond its reach what

about what lies beyond its reach what lies beyond the tree floor what lies

lies beyond the tree floor what lies

lies beyond the tree floor what lies beyond the entrance of the cave beyond

beyond the entrance of the cave beyond

beyond the entrance of the cave beyond the next month in the sea the ocean and

the next month in the sea the ocean and

the next month in the sea the ocean and eventually the arises what opportunities

eventually the arises what opportunities

eventually the arises what opportunities are there other safer or better places

are there other safer or better places

are there other safer or better places to live this family drove us to wonder

to live this family drove us to wonder

to live this family drove us to wonder what lies beyond the earth itself how

what lies beyond the earth itself how

what lies beyond the earth itself how many worlds await us and are they

many worlds await us and are they

many worlds await us and are they inhabited I’ve been thrilled by these

inhabited I’ve been thrilled by these

inhabited I’ve been thrilled by these questions since childhood when I go

questions since childhood when I go

questions since childhood when I go searching for answer I’m an astronomer

searching for answer I’m an astronomer

searching for answer I’m an astronomer slightly planets beyond our solar system

slightly planets beyond our solar system

slightly planets beyond our solar system which are called excellence and although

which are called excellence and although

which are called excellence and although the question about their existence has

the question about their existence has

the question about their existence has been here for thousands of year it’s

been here for thousands of year it’s

been here for thousands of year it’s only 22 years ago that two researchers

only 22 years ago that two researchers

only 22 years ago that two researchers at the University of Geneva building so

at the University of Geneva building so

at the University of Geneva building so they meet in this very contem the first

they meet in this very contem the first

they meet in this very contem the first exoplanets around

exoplanets around

exoplanets around like star so it’s a very severe local

like star so it’s a very severe local

like star so it’s a very severe local story but it has now a worldwide impact

story but it has now a worldwide impact

story but it has now a worldwide impact because there is more than 3000

because there is more than 3000

because there is more than 3000 exoplanets that have been detected

exoplanets that have been detected

exoplanets that have been detected sister and there are two main to main

sister and there are two main to main

sister and there are two main to main facts that scientists established and

facts that scientists established and

facts that scientists established and the first one is that planets

the first one is that planets

the first one is that planets ubiquitous know every other star host a

ubiquitous know every other star host a

ubiquitous know every other star host a planet 20% of those Falls at least the

planet 20% of those Falls at least the

planet 20% of those Falls at least the planet that is the size of the earth now

planet that is the size of the earth now

planet that is the size of the earth now there is a hundred billion storing our

there is a hundred billion storing our

there is a hundred billion storing our galaxy so that will make for 20 billion

galaxy so that will make for 20 billion

galaxy so that will make for 20 billion earth-sized planets it’s mesmerizing

earth-sized planets it’s mesmerizing

earth-sized planets it’s mesmerizing but the second fact is to me even more

but the second fact is to me even more

but the second fact is to me even more striking and the fact that there is a

striking and the fact that there is a

striking and the fact that there is a fantastic diversity among the planet

fantastic diversity among the planet

fantastic diversity among the planet discovered it’s beyond imagination but

discovered it’s beyond imagination but

discovered it’s beyond imagination but it’s actually my job to try and imagine

it’s actually my job to try and imagine

it’s actually my job to try and imagine it and it’s very important this

it and it’s very important this

it and it’s very important this diversity because how a planet looks

diversity because how a planet looks

diversity because how a planet looks like today is how it formed and if you

like today is how it formed and if you

like today is how it formed and if you are able to understand processes at the

are able to understand processes at the

are able to understand processes at the origin of all the planets we know that

origin of all the planets we know that

origin of all the planets we know that it means that we can explain how our

it means that we can explain how our

it means that we can explain how our planets form and how life eventually

planets form and how life eventually

planets form and how life eventually appear and so these these two facts

appear and so these these two facts

appear and so these these two facts raises raise two fundamental questions

raises raise two fundamental questions

raises raise two fundamental questions if life arose under from there are

if life arose under from there are

if life arose under from there are billions of is life a common phenomenon

billions of is life a common phenomenon

billions of is life a common phenomenon in the universe and however if there is

in the universe and however if there is

in the universe and however if there is a huge diversity in life is able to

a huge diversity in life is able to

a huge diversity in life is able to blossom in very dire

blossom in very dire

blossom in very dire very different from our environment

very different from our environment

very different from our environment would we even be able to proceed to

would we even be able to proceed to

would we even be able to proceed to recognize it so I need to make a

recognize it so I need to make a

recognize it so I need to make a simplification here when we talk about

simplification here when we talk about

simplification here when we talk about life

life

life I will speak mainly about microbial life

I will speak mainly about microbial life

I will speak mainly about microbial life which my father mean it’s the biomass of

which my father mean it’s the biomass of

which my father mean it’s the biomass of the earth

the earth

the earth this beautiful organism that you see

this beautiful organism that you see

this beautiful organism that you see here is the reason of your presence in

here is the reason of your presence in

here is the reason of your presence in this room it’s the first organism this

this room it’s the first organism this

this room it’s the first organism this is GMO bacteria in all of photosynthesis

is GMO bacteria in all of photosynthesis

is GMO bacteria in all of photosynthesis so it’s at the origin it’s ancestor are

so it’s at the origin it’s ancestor are

so it’s at the origin it’s ancestor are the origin of the of the oxygen we are

the origin of the of the oxygen we are

the origin of the of the oxygen we are breathing so it literally 2 and 1/2

breathing so it literally 2 and 1/2

breathing so it literally 2 and 1/2 billion years ago fill the primordial

billion years ago fill the primordial

billion years ago fill the primordial and posture of the earth with oxygen so

and posture of the earth with oxygen so

and posture of the earth with oxygen so it completely changed the atmosphere of

it completely changed the atmosphere of

it completely changed the atmosphere of the earth and it’s the very reason why

the earth and it’s the very reason why

the earth and it’s the very reason why my colleagues and I are looking trying

my colleagues and I are looking trying

my colleagues and I are looking trying to look at atmospheres of exoplanets to

to look at atmospheres of exoplanets to

to look at atmospheres of exoplanets to try and detect such big changes to

try and detect such big changes to

try and detect such big changes to existence of oxygen that could be linked

existence of oxygen that could be linked

existence of oxygen that could be linked with microorganism living at the surface

with microorganism living at the surface

with microorganism living at the surface of the planet but in order to try this

of the planet but in order to try this

of the planet but in order to try this microorganism needs to make ingredients

microorganism needs to make ingredients

microorganism needs to make ingredients that are united on this country on this

that are united on this country on this

that are united on this country on this beautiful picture liquid water at the

beautiful picture liquid water at the

beautiful picture liquid water at the surface and sunlight and these two other

surface and sunlight and these two other

surface and sunlight and these two other of these two things are comes together

of these two things are comes together

of these two things are comes together in only one place in our solar system

in only one place in our solar system

in only one place in our solar system it’s the earth now there are all the

it’s the earth now there are all the

it’s the earth now there are all the places in the star system that looks

places in the star system that looks

places in the star system that looks like a list and one of the most striking

like a list and one of the most striking

like a list and one of the most striking example is this one so this is the green

example is this one so this is the green

example is this one so this is the green of the same sunlight on the sea at the

of the same sunlight on the sea at the

of the same sunlight on the sea at the surface of Titan which is Saturn’s

surface of Titan which is Saturn’s

surface of Titan which is Saturn’s because the only thing here is that

because the only thing here is that

because the only thing here is that Titan is very far from the Sun

Titan is very far from the Sun

Titan is very far from the Sun suppose it’s minus a hundred and eighty

suppose it’s minus a hundred and eighty

suppose it’s minus a hundred and eighty degrees Celsius so it’s low liquid water

degrees Celsius so it’s low liquid water

degrees Celsius so it’s low liquid water that you see it’s a lake of liquid

that you see it’s a lake of liquid

that you see it’s a lake of liquid methane that is actually laying onto the

methane that is actually laying onto the

methane that is actually laying onto the bed of rocks Lee’s water ice now below

bed of rocks Lee’s water ice now below

bed of rocks Lee’s water ice now below this ice shell that could be some water

this ice shell that could be some water

this ice shell that could be some water ocean one side down on other moons of of

ocean one side down on other moons of of

ocean one side down on other moons of of giant planets which are all very cold

giant planets which are all very cold

giant planets which are all very cold the only thing is that some I cannot

the only thing is that some I cannot

the only thing is that some I cannot reach these places directed and besides

reach these places directed and besides

reach these places directed and besides this the solar system we need to very

this the solar system we need to very

this the solar system we need to very friendly condition for life to blossom

friendly condition for life to blossom

friendly condition for life to blossom so what we do is that I will show you

so what we do is that I will show you

so what we do is that I will show you how the the Sun of the temple extent the

how the the Sun of the temple extent the

how the the Sun of the temple extent the fruit of a bunch of the thousands of

fruit of a bunch of the thousands of

fruit of a bunch of the thousands of exoplanet we have detected having no

exoplanet we have detected having no

exoplanet we have detected having no places like you have in the solar system

places like you have in the solar system

places like you have in the solar system makes it really critical to determine if

makes it really critical to determine if

makes it really critical to determine if there is some cedar places elsewhere

there is some cedar places elsewhere

there is some cedar places elsewhere around other stars so I will solve the

around other stars so I will solve the

around other stars so I will solve the planets by their temperature and density

planets by their temperature and density

planets by their temperature and density and I will make a pure now 500 of

and I will make a pure now 500 of

and I will make a pure now 500 of exoplanets for which we know the masses

exoplanets for which we know the masses

exoplanets for which we know the masses the spices hence there

the spices hence there

the spices hence there and there are distances to the song so

and there are distances to the song so

and there are distances to the song so we can assess their approximate surface

we can assess their approximate surface

we can assess their approximate surface temperature everything you see beyond

temperature everything you see beyond

temperature everything you see beyond that in this picture like overall

that in this picture like overall

that in this picture like overall stripes we it’s fantasy it’s an art

stripes we it’s fantasy it’s an art

stripes we it’s fantasy it’s an art especially just do not know and to me

especially just do not know and to me

especially just do not know and to me this is really fascinating because it is

this is really fascinating because it is

this is really fascinating because it is lots of room for imagination so playing

lots of room for imagination so playing

lots of room for imagination so playing with the laws of physics chemistry and

with the laws of physics chemistry and

with the laws of physics chemistry and climate sciences we use that as its

climate sciences we use that as its

climate sciences we use that as its angles I’m trying to make prediction

angles I’m trying to make prediction

angles I’m trying to make prediction that we try to verify and for instance

that we try to verify and for instance

that we try to verify and for instance it would be extremely tempting to apply

it would be extremely tempting to apply

it would be extremely tempting to apply a hockey planets that are about the size

a hockey planets that are about the size

a hockey planets that are about the size of the earth in the window in the

of the earth in the window in the

of the earth in the window in the Wrights temperature range so that liquid

Wrights temperature range so that liquid

Wrights temperature range so that liquid water could answer their stories on into

water could answer their stories on into

water could answer their stories on into their atmosphere

their atmosphere

their atmosphere it’s an unfortunate coincidence that

it’s an unfortunate coincidence that

it’s an unfortunate coincidence that these planets are precisely the one that

these planets are precisely the one that

these planets are precisely the one that are the most difficult to detect and the

are the most difficult to detect and the

are the most difficult to detect and the most difficult to characterize it’s much

most difficult to characterize it’s much

most difficult to characterize it’s much easier to characterize the atmosphere of

easier to characterize the atmosphere of

easier to characterize the atmosphere of giant hot giant gaseous planets and

giant hot giant gaseous planets and

giant hot giant gaseous planets and while it seems a tad frustrating at

while it seems a tad frustrating at

while it seems a tad frustrating at first the left field extraordinary

first the left field extraordinary

first the left field extraordinary findings that teachers about candidate

findings that teachers about candidate

findings that teachers about candidate are more logical

are more logical

are more logical so I would like to share with you know

so I would like to share with you know

so I would like to share with you know one of these this example it’s maybe the

one of these this example it’s maybe the

one of these this example it’s maybe the most exciting discovery I made in my in

most exciting discovery I made in my in

most exciting discovery I made in my in my career and it’s about a planet that

my career and it’s about a planet that

my career and it’s about a planet that is about the size of Neptune Neptune is

is about the size of Neptune Neptune is

is about the size of Neptune Neptune is up there in the cold part of this

up there in the cold part of this

up there in the cold part of this diagram and planet that is emphasized

diagram and planet that is emphasized

diagram and planet that is emphasized here is 4 GJ 4 3 6 and that exchange in

here is 4 GJ 4 3 6 and that exchange in

here is 4 GJ 4 3 6 and that exchange in spite of being mainly composed of of gas

spite of being mainly composed of of gas

spite of being mainly composed of of gas don’t squash one question even

don’t squash one question even

don’t squash one question even temperature

temperature

temperature that should call these planets gas giant

that should call these planets gas giant

that should call these planets gas giant so by golden baby urchins by lack

so by golden baby urchins by lack

so by golden baby urchins by lack of more adapted terminology and it helps

of more adapted terminology and it helps

of more adapted terminology and it helps because it’s very close to its stuff so

because it’s very close to its stuff so

because it’s very close to its stuff so let me try to give you the feeling of

let me try to give you the feeling of

let me try to give you the feeling of how close it is in our solar system

how close it is in our solar system

how close it is in our solar system mercury is the closest planet to the Sun

mercury is the closest planet to the Sun

mercury is the closest planet to the Sun its orbit around the Sun in just 88 days

its orbit around the Sun in just 88 days

its orbit around the Sun in just 88 days that’s just one year from you if I take

that’s just one year from you if I take

that’s just one year from you if I take the system of GJ 4 3 6 9 instead of the

the system of GJ 4 3 6 9 instead of the

the system of GJ 4 3 6 9 instead of the Sun this is what they thought it would

Sun this is what they thought it would

Sun this is what they thought it would look like a star in just three days okay

look like a star in just three days okay

look like a star in just three days okay every three minutes surfaces extreme

every three minutes surfaces extreme

every three minutes surfaces extreme environment in terms of standard

environment in terms of standard

environment in terms of standard recognition fortunately for us the star

recognition fortunately for us the star

recognition fortunately for us the star is much smaller and colder and rather

is much smaller and colder and rather

is much smaller and colder and rather than at the Sun and that it’s easier to

than at the Sun and that it’s easier to

than at the Sun and that it’s easier to observe the atmosphere of the planet and

observe the atmosphere of the planet and

observe the atmosphere of the planet and the key thing here that makes it

the key thing here that makes it

the key thing here that makes it possible is the fact that as seen from

possible is the fact that as seen from

possible is the fact that as seen from the earth the planet is impassive in

the earth the planet is impassive in

the earth the planet is impassive in front of the star we call these

front of the star we call these

front of the star we call these transients where the planet from the

transients where the planet from the

transients where the planet from the rocks a tiny bit of the fraction of the

rocks a tiny bit of the fraction of the

rocks a tiny bit of the fraction of the Starlight and when it has an atmosphere

Starlight and when it has an atmosphere

Starlight and when it has an atmosphere and even tying a fraction is actually

and even tying a fraction is actually

and even tying a fraction is actually filters actually the Starlight and if

filters actually the Starlight and if

filters actually the Starlight and if you are able to to analyze the line that

you are able to to analyze the line that

you are able to to analyze the line that has filters who these are consumed with

has filters who these are consumed with

has filters who these are consumed with the instrument go spectrograph we can

the instrument go spectrograph we can

the instrument go spectrograph we can retrieve the composition of the

retrieve the composition of the

retrieve the composition of the planetary atmosphere the only thing is

planetary atmosphere the only thing is

planetary atmosphere the only thing is that it’s really challenging because I

that it’s really challenging because I

that it’s really challenging because I as you can see I really are cooled by

as you can see I really are cooled by

as you can see I really are cooled by the atmosphere or other surface of the

the atmosphere or other surface of the

the atmosphere or other surface of the star is very small so it’s very small

star is very small so it’s very small

star is very small so it’s very small signatures so by I do to God

signatures so by I do to God

signatures so by I do to God sure was try to get to detect the

sure was try to get to detect the

sure was try to get to detect the lightest possible species in the

lightest possible species in the

lightest possible species in the atmosphere because it would then be the

atmosphere because it would then be the

atmosphere because it would then be the top of the items you may recover a

top of the items you may recover a

top of the items you may recover a bigger fraction of the surface of the

bigger fraction of the surface of the

bigger fraction of the surface of the stomach in the single peak is mostly

stomach in the single peak is mostly

stomach in the single peak is mostly composed by hydrogen which is precisely

composed by hydrogen which is precisely

composed by hydrogen which is precisely the lightest gas in the universe so I

the lightest gas in the universe so I

the lightest gas in the universe so I thought okay let’s propose to observe to

thought okay let’s propose to observe to

thought okay let’s propose to observe to detect hydrogen in this in this sense

detect hydrogen in this in this sense

detect hydrogen in this in this sense and the observation were only possible

and the observation were only possible

and the observation were only possible with the help of the Hubble Space

with the help of the Hubble Space

with the help of the Hubble Space Telescope which is a very competitive

Telescope which is a very competitive

Telescope which is a very competitive instrument if you want to basically all

instrument if you want to basically all

instrument if you want to basically all astronomers to observe with it because

astronomers to observe with it because

astronomers to observe with it because it’s a kind of our choice so there’s a

it’s a kind of our choice so there’s a

it’s a kind of our choice so there’s a lot of demand actually took me four

lot of demand actually took me four

lot of demand actually took me four years to convince my peers in the

years to convince my peers in the

years to convince my peers in the selection committee of the observing

selection committee of the observing

selection committee of the observing programs there that it was worthwhile to

programs there that it was worthwhile to

programs there that it was worthwhile to do this this observation but when after

do this this observation but when after

do this this observation but when after after several years I can to be obtained

after several years I can to be obtained

after several years I can to be obtained all of my data so 2014 I was run against

all of my data so 2014 I was run against

all of my data so 2014 I was run against because what I saw on that I’m going to

because what I saw on that I’m going to

because what I saw on that I’m going to show to show to you it’s just something

show to show to you it’s just something

show to show to you it’s just something that nobody was prepared but you see

that nobody was prepared but you see

that nobody was prepared but you see here and I know it doesn’t look very

here and I know it doesn’t look very

here and I know it doesn’t look very impressive and it’s so because it’s all

impressive and it’s so because it’s all

impressive and it’s so because it’s all data from Hubble so you could see

data from Hubble so you could see

data from Hubble so you could see looking at the detector offer virtually

looking at the detector offer virtually

looking at the detector offer virtually putting your eyelids so it looks all

putting your eyelids so it looks all

putting your eyelids so it looks all dirty because it’s it’s not been

dirty because it’s it’s not been

dirty because it’s it’s not been properly accused in fact in age of the

properly accused in fact in age of the

properly accused in fact in age of the staff who spectrograph what they of the

staff who spectrograph what they of the

staff who spectrograph what they of the shape will the interesting thing is to

shape will the interesting thing is to

shape will the interesting thing is to compare what the data

compare what the data

compare what the data obtained with the Kinect is now in front

obtained with the Kinect is now in front

obtained with the Kinect is now in front of the star to the data set of penguin

of the star to the data set of penguin

of the star to the data set of penguin and he’s in front of the star and the

and he’s in front of the star and the

and he’s in front of the star and the sharper eyes the moon you might have

sharper eyes the moon you might have

sharper eyes the moon you might have noticed the decrease of the of the

noticed the decrease of the of the

noticed the decrease of the of the Starlight in the vehicle region here and

Starlight in the vehicle region here and

Starlight in the vehicle region here and the fact that we can see that it is

the fact that we can see that it is

the fact that we can see that it is absolutely extraordinary means that the

absolutely extraordinary means that the

absolutely extraordinary means that the signal is huge which in that’s the

signal is huge which in that’s the

signal is huge which in that’s the atmosphere of the planet it must be huge

atmosphere of the planet it must be huge

atmosphere of the planet it must be huge in front of the star how huge this is

in front of the star how huge this is

in front of the star how huge this is what my team and I try to determine with

what my team and I try to determine with

what my team and I try to determine with numerical simulation and we found out

numerical simulation and we found out

numerical simulation and we found out that the atmosphere of this planet

that the atmosphere of this planet

that the atmosphere of this planet associated with child commits cloud of

associated with child commits cloud of

associated with child commits cloud of hydrogen which was completely a complete

hydrogen which was completely a complete

hydrogen which was completely a complete surprise and what is happening to this

surprise and what is happening to this

surprise and what is happening to this to these subjects that is so close we

to these subjects that is so close we

to these subjects that is so close we saw that the planet is losing its

saw that the planet is losing its

saw that the planet is losing its atmosphere to space the star strips the

atmosphere to space the star strips the

atmosphere to space the star strips the planet out of its atmosphere slowly and

planet out of its atmosphere slowly and

planet out of its atmosphere slowly and others there are still gaps around it

others there are still gaps around it

others there are still gaps around it but the thing that is Rhema summarizing

but the thing that is Rhema summarizing

but the thing that is Rhema summarizing is when you consider that there are

is when you consider that there are

is when you consider that there are planets out there that this one but

planets out there that this one but

planets out there that this one but close to their star and actually this

close to their star and actually this

close to their star and actually this atmospheric evaporation would explain

atmospheric evaporation would explain

atmospheric evaporation would explain existence of a population hot very hot

existence of a population hot very hot

existence of a population hot very hot very close to the star rocky planets

very close to the star rocky planets

very close to the star rocky planets that doesn’t exist in the solar system

that doesn’t exist in the solar system

that doesn’t exist in the solar system and this path of formation of rocky

and this path of formation of rocky

and this path of formation of rocky planet physically evaporates a planet

planet physically evaporates a planet

planet physically evaporates a planet with orgasm you leave only the rocky

with orgasm you leave only the rocky

with orgasm you leave only the rocky core it’s something that never happened

core it’s something that never happened

core it’s something that never happened around the Sun and it’s very interesting

around the Sun and it’s very interesting

around the Sun and it’s very interesting to consider why around there are

to consider why around there are

to consider why around there are basically because the giant planet

basically because the giant planet

basically because the giant planet Jupiter Saturn did not migrate in more

Jupiter Saturn did not migrate in more

Jupiter Saturn did not migrate in more close to the Sun and that’s very

close to the Sun and that’s very

close to the Sun and that’s very fortunate for us because studies shows

fortunate for us because studies shows

fortunate for us because studies shows that if Jupiter had migrated in while

that if Jupiter had migrated in while

that if Jupiter had migrated in while very close to the Sun you could have

very close to the Sun you could have

very close to the Sun you could have ejected all the small planets on its

ejected all the small planets on its

ejected all the small planets on its path including earth so we wouldn’t

path including earth so we wouldn’t

path including earth so we wouldn’t either

either

either Jupiter are migrating so looking at

Jupiter are migrating so looking at

Jupiter are migrating so looking at these system review how kind of fragile

these system review how kind of fragile

these system review how kind of fragile we are in a way now let’s finish by

we are in a way now let’s finish by

we are in a way now let’s finish by getting back to birth and so you might

getting back to birth and so you might

getting back to birth and so you might folders okay this is all well a nice but

folders okay this is all well a nice but

folders okay this is all well a nice but how do we characterize the difference

how do we characterize the difference

how do we characterize the difference here of a place where we know there is

here of a place where we know there is

here of a place where we know there is there could be life but could we detect

there could be life but could we detect

there could be life but could we detect oxygen and water in this atmosphere so

oxygen and water in this atmosphere so

oxygen and water in this atmosphere so either good or the bad news the good

either good or the bad news the good

either good or the bad news the good news is that you can apply exactly the

news is that you can apply exactly the

news is that you can apply exactly the same technique I just explained to you

same technique I just explained to you

same technique I just explained to you the bad news is that Hubble is much too

the bad news is that Hubble is much too

the bad news is that Hubble is much too small to detect something you see the

small to detect something you see the

small to detect something you see the limp of the atmosphere of the earth it

limp of the atmosphere of the earth it

limp of the atmosphere of the earth it carries a 2.5 Muir diameter of newer

carries a 2.5 Muir diameter of newer

carries a 2.5 Muir diameter of newer space the cyber school bus but it’s much

space the cyber school bus but it’s much

space the cyber school bus but it’s much too small and actually my first job as a

too small and actually my first job as a

too small and actually my first job as a PhD students 13 years ago was to

PhD students 13 years ago was to

PhD students 13 years ago was to determine to calibrate how big a

determine to calibrate how big a

determine to calibrate how big a telescope should be to be able to detect

telescope should be to be able to detect

telescope should be to be able to detect this atmosphere of a nose like Venice

this atmosphere of a nose like Venice

this atmosphere of a nose like Venice the answer is well brutal is 40 meter

the answer is well brutal is 40 meter

the answer is well brutal is 40 meter telescope in space in the description

telescope in space in the description

telescope in space in the description below but activity dimensional 400

below but activity dimensional 400

below but activity dimensional 400 windows you have to find the good

windows you have to find the good

windows you have to find the good planets that you want to characterize

planets that you want to characterize

planets that you want to characterize and then there is a very because

and then there is a very because

and then there is a very because getting such furniture even they have

getting such furniture even they have

getting such furniture even they have already and especially in Switzerland we

already and especially in Switzerland we

already and especially in Switzerland we are really under the bridge

are really under the bridge

are really under the bridge we have conceived what is now considered

we have conceived what is now considered

we have conceived what is now considered the most the bests planet-hunting device

the most the bests planet-hunting device

the most the bests planet-hunting device the hospital graph which is installed in

the hospital graph which is installed in

the hospital graph which is installed in a telescope in Chile last month the

a telescope in Chile last month the

a telescope in Chile last month the say-so of this instrument Chinese

say-so of this instrument Chinese

say-so of this instrument Chinese spectrograph called espresso that we

spectrograph called espresso that we

spectrograph called espresso that we collect the lights out for a telescope

and the mass of appendix that is like

and the mass of appendix that is like now to get the density of such a planet

now to get the density of such a planet

now to get the density of such a planet we need also to measure size unfold it

we need also to measure size unfold it

we need also to measure size unfold it we will bring Switzerland beyond before

we will bring Switzerland beyond before

we will bring Switzerland beyond before we will switch them to space by building

we will switch them to space by building

we will switch them to space by building the first tree-sweet slit space mission

the first tree-sweet slit space mission

the first tree-sweet slit space mission which is specialist of cool chaos and

which is specialist of cool chaos and

which is specialist of cool chaos and it’s much smaller than half of it it

it’s much smaller than half of it it

it’s much smaller than half of it it will be very sensitive and very precise

will be very sensitive and very precise

will be very sensitive and very precise with the size of exoplanets and it

with the size of exoplanets and it

with the size of exoplanets and it involves a lot of institutions with say

involves a lot of institutions with say

involves a lot of institutions with say London in Europe the instrument has been

London in Europe the instrument has been

London in Europe the instrument has been bill it’s already in Paris what you see

bill it’s already in Paris what you see

bill it’s already in Paris what you see at the top of the screen and later I

at the top of the screen and later I

at the top of the screen and later I could be launched to leave any for

could be launched to leave any for

could be launched to leave any for launch at the end of next year and the

launch at the end of next year and the

launch at the end of next year and the data will arrive in so heavenly UNESCO

data will arrive in so heavenly UNESCO

data will arrive in so heavenly UNESCO in this very contem so

in this very contem so

in this very contem so we are ready to find the right planets

we are ready to find the right planets

we are ready to find the right planets but no no I just said if you slide ago

but no no I just said if you slide ago

but no no I just said if you slide ago well you need an extremely large

well you need an extremely large

well you need an extremely large telescope to characterize a certain

telescope to characterize a certain

telescope to characterize a certain sphere so remember from the introduction

sphere so remember from the introduction

sphere so remember from the introduction is old 7 as an S and you might see

is old 7 as an S and you might see

is old 7 as an S and you might see there’s a hole that leads to the Sun its

there’s a hole that leads to the Sun its

there’s a hole that leads to the Sun its Atacama Desert which coincidentally is

Atacama Desert which coincidentally is

Atacama Desert which coincidentally is the best place in the world for us a

the best place in the world for us a

the best place in the world for us a little observation this summit has been

little observation this summit has been

little observation this summit has been engineered it has been flattened to

engineered it has been flattened to

engineered it has been flattened to prepare for the construction of the

prepare for the construction of the

prepare for the construction of the biggest telescope ever built

biggest telescope ever built

biggest telescope ever built it’s cold then you guess the extremely

it’s cold then you guess the extremely

it’s cold then you guess the extremely large telescope

large telescope

large telescope the size of its mio is 40 meters so we

the size of its mio is 40 meters so we

the size of its mio is 40 meters so we have never been that close of being able

have never been that close of being able

have never been that close of being able to detect life elsewhere and I think

to detect life elsewhere and I think

to detect life elsewhere and I think this huge beam of makes a good

this huge beam of makes a good

this huge beam of makes a good conclusion for this store because it

conclusion for this store because it

conclusion for this store because it actually you know is something in which

actually you know is something in which

actually you know is something in which which reflects new image and the maybe

which reflects new image and the maybe

which reflects new image and the maybe the most beautiful I hear in all of this

the most beautiful I hear in all of this

the most beautiful I hear in all of this is that searching for life elsewhere

is that searching for life elsewhere

is that searching for life elsewhere with Zika teaches about ourselves

with Zika teaches about ourselves

with Zika teaches about ourselves thank you very much

thank you very much

thank you very much [Applause]

”

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