00:00:00
if we all woke up tomorrow and Earth
00:00:02
suddenly wasn't able to support human
00:00:04
life anymore where would Humanity go
00:00:08
Mars the moon sure they're kind of close
00:00:11
but they're inhospitable Earth on the
00:00:14
other hand has been developing for some
00:00:16
4 and 1/2 billion years and over that
00:00:19
time life has evolved to survive in it
00:00:21
from its atmosphere to its temperature
00:00:23
its gravitational forces water levels
00:00:25
radiation levels uh finding another
00:00:28
planet with the right amount of so many
00:00:30
different things sounds
00:00:32
impossible however it's estimated that
00:00:35
onethird of planets in the Milky Way
00:00:37
could support life and not just human
00:00:40
life from perfect planets more than
00:00:42
twice Earth's size to ones that already
00:00:45
host alien life let's take a look at
00:00:48
some planets that could be even better
00:00:50
to live on than
00:00:58
earth now okay let's define how an
00:01:02
exoplanet that's a planet that orbits a
00:01:04
star outside our solar system could
00:01:07
possibly be more suitable for life than
00:01:09
Earth first off we have the exoplanet's
00:01:12
age which is reliant on its host star
00:01:15
our sun has a relatively short lifespan
00:01:18
of 10 billion years and as such Earth
00:01:21
only has about 4 billion habitable years
00:01:23
left before the sun in the last stages
00:01:26
of star death expands and engulfs most
00:01:28
of the planets close to it so to be
00:01:31
classed as super habitable a star with a
00:01:33
lifespan of 20 to 70 billion years is
00:01:36
needed giving the planet a longer time
00:01:38
to develop and sustain life second the
00:01:42
type of host star is super important our
00:01:45
son for example is a gype star which has
00:01:48
a surface temperature of around 10,000
00:01:50
de F ideally cooler G stars or kype
00:01:54
stars are superior K types have lower
00:01:57
surface temperatures of 6,200
00:02:00
F to 8,900 De F these emit ultraviolet
00:02:04
light and radiation at levels which
00:02:06
would be less damaging to our DNA and so
00:02:09
shouldn't obstruct the development of
00:02:11
life as much as more extreme examples
00:02:13
third the exoplanet's location within
00:02:16
the habitable zone that is the distance
00:02:18
from a star that allows liquid water to
00:02:20
exist on its surface as its proximity
00:02:23
from a star affects the exoplanet's
00:02:25
temperature too close to the star and
00:02:28
the planet is too hot like Mercury and
00:02:30
too far away means it's too cold like
00:02:32
Neptune the exoplanet itself should also
00:02:35
have a warmer surface temperature which
00:02:37
is our fourth point about 8° F more than
00:02:40
Earth's average temperature of 59° f
00:02:43
wait warmer Planet temperatures with
00:02:45
colder stars that doesn't sound right
00:02:48
well here's how colder temperature Stars
00:02:50
typically emit more light of longer
00:02:53
wavelengths than hotter Stars longer
00:02:55
wavelength light is more easily absorbed
00:02:57
by planetary ice than the shorter wavel
00:02:59
length light emitted by hotter Stars
00:03:02
which instead typically gets reflected
00:03:04
back into space so the ice on planets
00:03:06
with cooler Stars absorbs more light
00:03:08
causing it to melt and making the planet
00:03:11
warmer overall and finally in fifth we
00:03:14
need to consider size bigger is better
00:03:16
because exoplanets that are larger than
00:03:18
Earth give the planet a greater chance
00:03:21
of having solid land which is essential
00:03:23
for us we can't survive floating about
00:03:26
in a gas giant world like Jupiter okay
00:03:28
so that's five key things we need let's
00:03:31
see which exoplanets might just fit the
00:03:35
bill 442b or not to be so our first
00:03:40
prospective candidate is promisingly
00:03:42
labeled as a super Earth this is Kepler
00:03:46
442b out in the Lyra constellation which
00:03:49
orbits a kype hostar called Kepler 442
00:03:53
so take for Stellar type it's twice the
00:03:55
size of Earth with a solid and Rocky
00:03:57
surface and being located in this
00:03:59
systems habitable zone is covered in
00:04:02
liquid water tick tick and tick because
00:04:05
its star is also 40% smaller than our
00:04:08
sun the rate at which it's burning
00:04:10
through its fuel source is much much
00:04:12
slower at the rate it's currently
00:04:14
burning the planet will be in the Stars
00:04:16
habitable zone for up to 30 billion
00:04:19
years tick after its Discovery in 2015
00:04:23
researchers have also discovered that it
00:04:25
has a solar year equivalent to just 112
00:04:28
Earth days and a assuming its Rocky
00:04:30
composition is similar to that of Earth
00:04:32
the gravity of this planet would be
00:04:34
roughly 30% stronger meaning we'd all
00:04:37
feel about a third heavier than we
00:04:38
currently do even so with its incredibly
00:04:41
long habitable lifespan researchers
00:04:44
agree it's probably more habitable than
00:04:46
Earth all right what are we waiting for
00:04:48
let's go ah well it's located 1,200
00:04:52
light years away that's some 7
00:04:55
quadrillion miles from Earth even if we
00:04:58
were to travel on the f Fest spacecraft
00:05:00
out there which is currently the Parker
00:05:02
solar probe which can reach some 430,000
00:05:06
mph it would still take more than 1.8
00:05:09
million years to get there dang guess
00:05:12
I'll unpack my bags
00:05:15
then Cosmic cousin did you know that the
00:05:18
Earth has a family y turns out our home
00:05:22
planet has a distant older cousin that
00:05:24
never comes to family functions anymore
00:05:27
why because they're just too far away to
00:05:29
visit it 10 1 12 quadrillion miles away
00:05:32
to be exact so at 430,000 mph that's
00:05:36
still more than 2.8 million years I'm
00:05:39
talking about Earth's way cooler or
00:05:41
technically way hotter cuz Kepler 452b
00:05:45
nicknamed Earth 2.0 it's at a very
00:05:48
similar distance to its hostar as Earth
00:05:50
is to our sun 97 million miles to Earth
00:05:53
93 million however the gtype star it
00:05:56
orbits is 11% larger and with more eyes
00:05:59
on on 452b the planet's surface
00:06:02
temperature is somewhere between 80° F
00:06:04
and 143° F hotter than Earth but still
00:06:08
within the range for liquid water to
00:06:10
exist on its surface 452b is also 60%
00:06:14
larger than our planet which is great
00:06:16
news why because planets that are larger
00:06:19
than Earth can retain their interior
00:06:21
Heating and atmosphere for a longer time
00:06:23
period holding on to any oceans it might
00:06:26
have for longer too the only problem is
00:06:28
that it might not be superh habitable
00:06:30
for much longer its host star Kepler 452
00:06:34
is some 6 billion years old and of
00:06:36
similar size to the sun however being
00:06:39
further along in its Stellar life means
00:06:41
the habitable zone of this system is
00:06:43
being pushed further and further out
00:06:45
with 452b just skirting the inside of
00:06:48
this all important Zone the planet
00:06:50
likely only has another 500 to 900
00:06:53
million years of habitability left
00:06:55
before it becomes too hot to sustain
00:06:58
life such a shame no wonder 452b doesn't
00:07:01
show up to family
00:07:04
events terrestrial
00:07:06
twin speaking of families it turns out
00:07:09
Earth also has a long lost twin yep
00:07:12
there's an exoplanet out there that's
00:07:14
practically identical to earth and its
00:07:16
name is Koi
00:07:19
48781 Koi stands for Kepler object of
00:07:23
Interest this means that it's yet to be
00:07:25
confirmed as a planet since planetary
00:07:28
signals can sometimes be confused with
00:07:30
other activity like solar flares but if
00:07:32
it is it'll give Earth a run for its
00:07:35
money located 6 quadrillion miles away
00:07:38
in the constellation of Draco no not
00:07:41
that Draco this koi is 98% similar to
00:07:44
Earth especially when it comes to size
00:07:47
and temperature to work out the radius
00:07:49
of other exoplanets Earth's radius is
00:07:52
The Benchmark it measures
00:07:54
3,963 Mi which is 1 earth radius the koi
00:07:59
is 5 % larger with 1.05 Earth radius
00:08:02
equal to over
00:08:04
4,161 Mi this is an ideal size for a
00:08:08
super habitable planet bigger than Earth
00:08:11
but not so big that it's likely made up
00:08:13
of gas like Neptune although this koi
00:08:16
actually has a hotter host star a gtype
00:08:19
with temperatures that range from 10,000
00:08:21
to 13,000 de F its median surface
00:08:24
temperature is just 60° F that sounds
00:08:27
chilly but as I mentioned earlier
00:08:29
Earth's average temperature is 59° f
00:08:33
just 1° out it's getting hard to tell
00:08:35
these twins
00:08:37
apart move over
00:08:40
Mars imagine waking up one day and
00:08:42
looking out your window to see red
00:08:45
plants red leaves red trees red grass
00:08:48
red everywhere this is what life would
00:08:51
look like on the surface of Kepler 186f
00:08:55
why aren't the plants green here well
00:08:57
this is due to 186 F's hostar are being
00:08:59
cooler and redder than our hot yellow
00:09:02
sun meaning plant life on the exoplanet
00:09:05
would likely have adapted to utilize the
00:09:07
Red Wave light though it may be
00:09:09
different in color a study in 2018
00:09:11
suggested that 186f might have seasons
00:09:14
and a climate similar to Earth plus it
00:09:17
orbits within the goldilock zone of its
00:09:19
planetary system so-called because
00:09:21
conditions for life are not too hot or
00:09:23
not too cold essentially making it The
00:09:25
Sweet Spot of any habitable zone well
00:09:28
aside from all all the red it sounds
00:09:30
like a perfectly habitable planet but
00:09:32
there could be signs that things are
00:09:34
already living there yep 18 186f is a
00:09:38
planet of deep interest with Scientists
00:09:40
continuing to explore this world for
00:09:42
extraterrestrial life one report shows
00:09:45
inconclusive but optimistic signs in the
00:09:48
radio noise received from the planet
00:09:50
these radio emissions were captured by
00:09:52
the Allen telescope array where
00:09:54
scientists analyze the signals given off
00:09:56
by the planet while radio waves emitted
00:09:59
by planetary systems usually come from
00:10:01
the interactions between the matter and
00:10:03
electromagnetic fields of planets and
00:10:04
stars certain patterns in the Radio Data
00:10:07
from 1 186f were interpreted by some
00:10:09
researchers as potentially indicating an
00:10:11
intentional broadcast signal in other
00:10:14
words signs of extra terrestrial
00:10:16
technology however sadly the data is
00:10:18
extremely open-ended and the conclusion
00:10:20
is not widely accepted as any patterns
00:10:23
were not repeatable and likely
00:10:25
coincidental if anything is living there
00:10:28
though let's just hope they aren't face
00:10:30
huggers though we'll likely never know
00:10:32
as even traveling at 430,000 mph it
00:10:36
would also take over 900,000 years to
00:10:39
reach it in the constellation of sness
00:10:41
which is 580 light years away looks like
00:10:44
we can put that next alien sequel on
00:10:48
Hiatus Nature's
00:10:50
calling now there are tens of thousands
00:10:53
of Kepler object of interests out there
00:10:56
but koi 555 4.01
00:10:59
might just be the most interesting of
00:11:01
all of them this is because it's a
00:11:04
possible super habitable planet with
00:11:06
perfect conditions for life it's in a
00:11:09
prime age of roughly 6 1/2 billion years
00:11:12
it also has a similar orbital period to
00:11:14
Earth 362 days as well as an earth
00:11:17
radius of .96 so ever so slightly
00:11:21
smaller while bigger is better for
00:11:23
superh habitability this is an
00:11:26
indication it has a solid surface having
00:11:28
a rock surface improves chances of
00:11:31
Hosting life since many chemicals
00:11:32
nutrients and minerals needed for animal
00:11:34
and plant life like phosphorus are most
00:11:37
usable in a solid state alongside great
00:11:40
temperatures of 79° f it's also
00:11:43
equidistant to its H Star as the sun is
00:11:46
to Earth with both 93 million miles away
00:11:49
the planet is very close in Mass to
00:11:51
Earth too our native planet has a mass
00:11:54
of 6.56 tilion tons AKA 1 Earth Mass
00:11:58
this planets is 1.02 Earth masses or 6.7
00:12:03
sextilion tons however distance
00:12:06
continues to be a drawback at 700 Lighty
00:12:09
years away some 4.1 quadrillion miles
00:12:13
but let's put some things into
00:12:15
perspective our early homant ancestor
00:12:18
Homo erectus existed for over 1 and2
00:12:21
million years modern Homo sapiens
00:12:24
however only appeared about 300,000
00:12:27
years ago considering how little time we
00:12:29
took to develop we still have thousands
00:12:31
if not millions of years left for our
00:12:34
species to expand and explore the
00:12:36
universe enough time to maybe even
00:12:38
switch home planets one
00:12:41
day trapped in
00:12:44
space have you guys ever heard of an
00:12:47
Ultra Cool dwarf no I'm not talking
00:12:50
about Peter Dinklage Trappist one is an
00:12:52
Ultra Cool dwarf star that hosts a
00:12:55
system of seven planets pretty similar
00:12:58
to our solar systems eight planets this
00:13:00
system is over 40 light years away in
00:13:02
the constellation of Aquarius some 244
00:13:06
trillion miles out and one of the
00:13:08
exoplanets there Trappist 1e is a great
00:13:12
candidate for habitability its mass
00:13:15
radius density and gravity are all
00:13:17
similar to Earth's one e is a rocky
00:13:20
planet but also a potential water world
00:13:22
that's located in the system's goldilock
00:13:25
Zone although it's slightly smaller than
00:13:27
Earth at9 Earth rate radius its
00:13:29
atmosphere is not dense or thick enough
00:13:32
to harm its habitability its hostar that
00:13:35
previously mentioned Ultra Cool dwarf is
00:13:37
much cooler smaller dimmer and older
00:13:40
than our son at 7.6 billion years
00:13:42
compared to 4.6 billion as a result of
00:13:45
its smaller size and cooler temperatures
00:13:47
it's believed it can remain stable for
00:13:49
up to 12 trillion years over 2,000 times
00:13:52
longer than our sun in fact it's likely
00:13:54
that this star will be one of the last
00:13:56
remaining in the universe with such a
00:13:59
start to sustain itself 1e will
00:14:01
theoretically be able to develop complex
00:14:04
life and could even contain more water
00:14:06
on its Planet than Earth by up to 5% of
00:14:09
its entire Mass this is huge compared to
00:14:12
the amount of water on our own Planet
00:14:14
only making up .2% of Earth's mass whoa
00:14:18
move over Peter
00:14:21
Dinklage first prize Planet if there was
00:14:24
a prize for a most super habitable
00:14:27
planet then koi 57
00:14:29
15.01 would definitely take the CR Yep
00:14:33
this planet is the original Miss
00:14:35
Universe of course it's a long long long
00:14:39
way from home at 3,000 Lighty years some
00:14:42
18 quadrillion miles from Earth but for
00:14:45
all that distance this planet is the
00:14:47
cremel creme of habitable environments
00:14:50
first of all it's well within the age
00:14:52
range at 5 and a half billion years old
00:14:54
it also has a mean surface temperature
00:14:56
of 53° f which is only slightly cooler
00:15:00
than Earth's 59° F so not an ideal
00:15:03
temperature however its host star is a
00:15:06
kype orange dwarf which are usually
00:15:08
quiet low activity stars that are much
00:15:10
more stable than G type stars like
00:15:12
ourson this means that it doesn't send
00:15:15
out any dangerous x-rays or ultraviolet
00:15:17
radiation leading to more chance of life
00:15:20
and more advanced life forms also Miss
00:15:23
Universe here is almost double the size
00:15:25
of Earth 1.9 times larger in fact this
00:15:29
could lead to a planet that's even
00:15:30
greener than Earth why because the
00:15:33
wavelength of light from kype stars is
00:15:35
different to others plants and
00:15:37
vegetation would cover a lot more of the
00:15:39
surface of the planet so much so that
00:15:42
they would be super visible from space
00:15:45
wow she's so pretty let's give this
00:15:47
exoplanet the crown
00:15:50
already come to the dark side next up on
00:15:54
our Cosmic trip is Kepler 62f it may
00:15:57
look a little blue but that's that's
00:15:59
because it's the breathtaking watery
00:16:01
world of our dreams although it's nearly
00:16:03
a thousand light years away in the Lyra
00:16:05
constellation some 5.8 quadrillion miles
00:16:09
it has all the Hallmarks of a nice new
00:16:12
home planet it's bigger than Earth in
00:16:14
both size and mass estimated to be 2.6
00:16:17
Earth masses and a 1.4 earth radius it
00:16:21
also orbits around a k type star
00:16:24
Remember the one's able to exist up to
00:16:26
30 billion years and is already 7
00:16:29
billion years old the exoplanet even has
00:16:32
the potential to host its own moonlike
00:16:34
Earth and is assumed to be covered in
00:16:36
deep vast oceans much like Earth's
00:16:39
researchers have backed up 62 F's
00:16:42
habitability by conducting simulation
00:16:44
experiments testing the planet's CO2
00:16:46
levels and atmosphere thickness and
00:16:48
combined with the knowledge of its
00:16:50
orbital path They concluded it's likely
00:16:52
the exoplanet has a climate and even
00:16:54
Seasons similar to those of Earth its
00:16:57
axial tilt is even s ilar to Earth's 23°
00:17:00
calculated at a range between 14 and 30
00:17:03
however it's tidally locked so that one
00:17:06
side permanently faces its star leaving
00:17:09
one side an eternal day and one side an
00:17:12
eternal night even so the axial tilt
00:17:15
would be able to transfer heat from the
00:17:17
Sun side to the cooler darker side
00:17:19
meaning parts of the planet would still
00:17:21
be habitable well as a night owl this
00:17:23
sounds perfect to
00:17:25
me come to the darker side
00:17:29
62f isn't the only super habitable
00:17:32
exoplanet with a permanent dark side
00:17:34
though Glee 667cc is the next promising
00:17:38
planet that outshines Earth well at
00:17:40
least 50% of it does it's described as
00:17:43
one of the best candidates for liquid
00:17:45
water possessing suitable temperatures
00:17:47
along a region called The Terminator
00:17:48
line that's the line that divides the
00:17:50
dark and light side of a planet at any
00:17:52
given point so essentially the thin
00:17:55
sliver of the planet that's in an
00:17:57
eternal dusk State the despite a tily
00:17:59
locked darker side its starf facing side
00:18:02
receives around 90% of the light that
00:18:04
Earth does but life on the planet might
00:18:07
be a bit of an adjustment our 365-day
00:18:10
year would be reduced to just 28 days on
00:18:13
Glee this means that if you're 20 years
00:18:15
old on earth you'd be 260 on this planet
00:18:20
so what about getting there well it's
00:18:22
located in the constellation of Scorpius
00:18:24
only 22 light years away sounds pretty
00:18:27
close right unfortunately it would still
00:18:30
take over 40,000 years to reach even
00:18:33
with the Parker solar probes 430,000 M
00:18:36
hour speeds but never fear new
00:18:39
technologies appear all the time ones
00:18:41
that could make our current advances
00:18:43
look like Stone Age tools so by the year
00:18:45
402000 we might be making a dreamlike
00:18:48
trip to this planet a
00:18:51
reality early
00:18:53
Evolution humans have been searching for
00:18:55
evidence of extraterrestrial life for
00:18:57
years but what what's more fascinating
00:19:00
is the discovery of life as it begins
00:19:02
which exoplanet k218b might be
00:19:05
experiencing right this second and some
00:19:08
125 light years away or 730 trillion
00:19:12
miles it's still very far out from Earth
00:19:15
and at first glance it doesn't look
00:19:17
great the orbital path of k218b actually
00:19:21
takes it out of its host star's
00:19:22
habitable zone and its hostar is much
00:19:25
smaller and cooler than our own however
00:19:28
studies suggests that it may be cold
00:19:30
enough to possess liquid oceans
00:19:32
conducive to life in 2019 water vapor
00:19:35
was discovered on k218b making up 7 to
00:19:39
1.6% of the atmosphere scientists
00:19:42
achieved this using a special kind of
00:19:44
Imaging technique called spectrometry
00:19:46
this separates the light reflected off
00:19:48
the planet into bands on a spectrum each
00:19:51
chemical element has its own unique
00:19:53
fingerprint so if it is present in the
00:19:55
atmosphere scientists will be able to
00:19:57
recognize it on this spectrum alongside
00:20:00
other traits about its composition with
00:20:02
this data researchers also inferred that
00:20:05
the planet may have clouds however if it
00:20:08
does these will likely be formed of ice
00:20:10
as the surface temperature of k218b
00:20:13
rarely reaches above 41° F okay so far
00:20:17
this exoplanet is sounding like a real
00:20:19
doozy but in 2023 NASA announced that
00:20:22
the James web telescope detected traces
00:20:24
of methane CO2 and possibly dimethyl
00:20:28
sulfide commonly known as DMS in the
00:20:31
atmosphere now most DMS in the Earth's
00:20:33
atmosphere is emitted from phytoplankton
00:20:35
and ocean environments which are
00:20:37
bacterial organisms responsible for
00:20:39
removing CO2 from the air and a primary
00:20:42
source of food for sea creatures this
00:20:45
means that there could already be signs
00:20:47
of small life inhabiting the planet even
00:20:49
scientists admit that a planet could be
00:20:51
extremely non- earthlike but also
00:20:53
promise better conditions for the
00:20:55
evolution of new neverbe seen life so in
00:20:59
a few million years we might have
00:21:00
extraterrestrial
00:21:03
neighbors tea garden party with a name
00:21:07
like tea garden star B you might expect
00:21:09
me to show you the hostar of a far-off
00:21:12
system but actually Tea Garden star B
00:21:14
also known less confusingly as te Garden
00:21:17
b is another exoplanet one whose
00:21:19
Discovery is a big deal because of its
00:21:22
1.05 Mass T Garden star B is likely to
00:21:26
be Rocky and astronomers judge that it
00:21:29
has a 60% chance of having liquid water
00:21:32
even though its orbit is outside of the
00:21:34
system's habitable zone estimates put
00:21:36
the Tea Garden system at around 8
00:21:38
billion years old plenty of time to
00:21:41
potentially develop life and a prime age
00:21:43
for a super habitable planet the planet
00:21:45
is 12 and 1/2 Lighty years away which
00:21:48
sounds more reachable than others even
00:21:50
if it is 70 trillion miles out and
00:21:53
traveling at 430,000 mph that means it
00:21:56
take a mere 18,700
00:21:58
27 years to get there while it's still
00:22:01
not closed it does have a high Earth
00:22:03
similarity index rating of
00:22:06
.95 sounds too good to be true right
00:22:09
well sadly it is even with a 60% chance
00:22:12
of the exoplanet having water there's
00:22:14
only a 3% chance of it having an
00:22:16
atmosphere without an atmosphere which
00:22:18
is the mixes of gases around the earth
00:22:21
there' just be a vacuum and as far as
00:22:23
scientists know life cannot grow or
00:22:26
exist where there's literally nothing so
00:22:28
so if there's no atmosphere ever to be
00:22:30
found on te Garden star B we'll have to
00:22:32
postpone the move there indefinitely I'm
00:22:36
afraid Blue Lagoon beyond the moon what
00:22:40
would humans look like if we had only
00:22:42
evolved in water instead of on land
00:22:45
perhaps we'd have gills and fins of our
00:22:47
own and webs on our feet and hands well
00:22:50
if we' developed on Kepler 22b we might
00:22:53
have evolved just like that located in
00:22:55
the constellation of signis 635
00:22:58
light years from Earth roughly 3.7
00:23:00
quadrillion miles this super habitable
00:23:03
water world is most likely covered in
00:23:05
super oceans it orbits its gtype hostar
00:23:08
every 290 days with the Luminosity of
00:23:11
its star just 25% less than that of Aron
00:23:15
however the distance to its star is 15%
00:23:17
less than Earth's distance to the Sun so
00:23:20
despite being smaller and colder this
00:23:22
shorter distance and lower Luminosity
00:23:24
allows surface temperatures of 72° f on
00:23:27
22 be oh Bal me thankfully studies
00:23:31
indicate that these temperatures won't
00:23:33
be subject to extreme Greenhouse heating
00:23:35
like Earth where heat is trapped near
00:23:37
the Earth's surface by a buildup of
00:23:39
gases that means the planet will stay at
00:23:41
a habitable temperature for much longer
00:23:44
with a size over two times that of our
00:23:46
home planet there's more than enough
00:23:48
space to go around with studies also
00:23:50
suggesting that there's a great
00:23:51
potential for life to inhabited Seas who
00:23:54
knows living in a watery Paradise may be
00:23:57
the best thing for humankind kind
00:23:59
assuming there's enough water wings to
00:24:00
go
00:24:02
around Planet
00:24:04
Ross can you imagine living on a planet
00:24:07
called Ross would we all be called
00:24:09
rossian Rosings Ross kind well one of
00:24:13
the great things about Ross is that it's
00:24:15
actually a real planet called Ross 128b
00:24:18
to be precise located out in the Virgo
00:24:21
constellation roughly 11 light years
00:24:23
from Earth this exoplanet is close to
00:24:26
the same size as Earth and has a surface
00:24:28
temperature of 73° f suitable enough for
00:24:32
water if it has an atmosphere scientists
00:24:34
are actually looking to find evidence of
00:24:36
life in this potential atmosphere which
00:24:38
would contain chemicals such as oxygen
00:24:40
ozone and methane a great cocktail of
00:24:43
evolutionary ingredients and it seems
00:24:46
like Ross wants to become our
00:24:47
Interstellar neighbor as it's moving
00:24:49
closer and closer towards us the hostar
00:24:53
of the system Ross 128 is gradually
00:24:55
moving towards our solar system meaning
00:24:57
in the next 70 9,000 years Ross 128b
00:25:00
will be the closest exoplanet to Earth
00:25:03
Ross's gravity is also something to
00:25:05
consider regarding habitability as it's
00:25:08
only slightly higher than Earth's humans
00:25:10
could survive up to four times the
00:25:12
Earth's gravitational strength which is
00:25:14
1 G Ross however has a force of 1.1 G's
00:25:18
so we barely feel a difference this
00:25:20
means it's entirely possible for humans
00:25:22
animals and even plants to adapt
00:25:25
although we would notice it this
00:25:27
increased force would feel feel like
00:25:28
carrying extra weight so if you're 150
00:25:31
lb on Earth there you'd feel like you're
00:25:33
carrying around an extra 16 lb more so I
00:25:36
think we can all agree if we ever visit
00:25:38
Ross we're leaving the scales on
00:25:41
Earth the planet next door if the Earth
00:25:45
was a house then proximos centuri B
00:25:48
would be its next door neighbor not only
00:25:50
does it have extremely promising
00:25:51
resources for life it's also the closest
00:25:54
exoplanet to us a mere four light years
00:25:56
away in The Centaurus con ation could
00:25:59
this be our best chance of living on
00:26:01
another planet well to start with it's
00:26:03
well within its hostar's habitation Zone
00:26:06
and the radiation emitted by its hostar
00:26:08
is sufficient for a certain type of
00:26:10
photosynthesis that could support plant
00:26:12
and bacterial life there's also reason
00:26:15
to believe that centuri once possessed
00:26:17
water a long time ago though not anymore
00:26:20
but there's ways to get its oceans back
00:26:22
again mechanisms like asteroids and
00:26:24
comets can deliver water to developing
00:26:27
planets these objects carry water within
00:26:29
them and it's thought that this water
00:26:31
vaporizes melts and disperses once it's
00:26:33
impacted a planet's Rocky surface if it
00:26:36
has an atmosphere it's likely to contain
00:26:38
oxygen and CO2 and if centuri once lost
00:26:41
its atmosphere volcanic activity on the
00:26:44
planet could potentially rebuild it as
00:26:46
eruptions release the gases trapped in
00:26:48
the exoplanet's Rocky structure this
00:26:50
second atmosphere would likely provide
00:26:52
an even more stable one than Earth's so
00:26:55
is reaching this planet possible well
00:26:57
even four flight years away is an
00:26:59
incredibly long distance we would still
00:27:02
have to travel 24 trillion miles over
00:27:05
7,500 years to claim it for our own
00:27:08
that's
00:27:09
268 generations of your future family
00:27:12
hold up in a rocket ship however centuri
00:27:15
is one of those lucky Red Dwarf orbiting
00:27:17
planets that will be hanging around for
00:27:19
trillions of years enough time to
00:27:21
develop life on its own plus there are
00:27:24
projects on Earth aiming to create Power
00:27:26
Systems and transportations that can
00:27:28
reach centuri within the 21st century so
00:27:31
who knows maybe your great great great
00:27:34
great great grandkids will live on a
00:27:36
whole new world in the not so distant
00:27:38
future man well that sounds
00:27:42
great okay which of these planets do you
00:27:45
think you'd want to live on the most let
00:27:47
me know down in the comments below and
00:27:49
thanks for watching
00:28:01
[Music]
