Aliens under the Ice – Life on Rogue Planets

by birtanpublished on August 25, 2020

Rogue planets are planets that travel through the universe alone they inhabit the dark and vast space between the stars drifting alone through eternal darkness no light warms their surfaces and they're exposed to the freezing cold of

Outer space they know no seasons no days and no nights which could give away the passing of time and yet rogue planets might carry alien life to all corners of the galaxy how would that work and how does a planet become a rogue anyway

there are several very different things that get called rogue planets for example sub-brown dwarfs gas giants that form from collapsing gas clouds and at the boring little brothers of brown

Dwarfs they're a sort of failed star and we'll now stop talking about them a far more interesting sorted rogue are terrestrial planets similar to earth that got kicked out of their planetary system young star systems aren't

Dangerous places where proto planets are battling for the available mass guzzling up as much material as possible in this fight for dominance they collide with each other or get dangerously close to each other's orbits if a very massive

Planet moves its orbit closer to the star it can kick smaller planets out of the system but just because a planet has survived the growing pains of formation doesn't mean it's safe planetary systems can be disrupted by flybys from stars or

Black holes at any point up to half of all planets born could end up as rogues the scientists don't agree on the numbers but it's likely that at the very least there are billions of rogue can it's in the Milky Way alone

Most rogues will share the same depressing fate as their star becomes smaller day by day the planet's surface quickly cools down to minus 270 degrees Celsius if they have oceans they'll freeze and become as hard as bedrock

Their atmospheres will sink down to the surface and eventually freeze to but weirdly enough some of these frozen dark deserts could Harbor life to understand how let's imagine a planet similar to earth in the same order of magnitude in

Terms of mass and Composition if we put it into deep space how could it still support life as far as we understand the nature of life there is one indispensable ingredient it needs liquid water water is important because it

Mixes things both matter and energy which lets interesting chemistry happen like life so our planet needs enough energy to keep at least a part of our oceans warm enough to sustain liquid water annoyingly about 99.97% of Earth's

Energy budget comes from the Sun so our imaginary rogue earth needs to work with the 0.03 percent of energy it has left which almost exclusively comes from its hot Center Earth's inner core is a giant metal ball about as hot as the surface

Of the Sun that surrounded by the outer core made up of liquid metals that are very very slowly solidifying releasing a lot of heat in the process as long as this process is ongoing our planet will be geologically active with solid and

Liquid material moving around and transporting energy to the surface where it can be harnessed as geothermal energy while the hot core of every planet will cool off eventually this process takes billions of years enough time for life

To come into existence and thrive there's even one scenario that could allow an earth-like planet to have oceans that are not frozen over if the planet had an extremely dense and high

Pressure hydrogen atmosphere the gas would not freeze and could trap enough of the heat trying to escape the planet to enable oceans that extend all the way to the surface and there's another possible way to stay warm moons if a ro

Planet brings a moon or more along with them a large enough moon could inject additional energy into the system via tidal forces these forces stretch and squeeze the planet a little bit every day like kneading dough keeping it warm

But the most likely scenario for a rogue bearing life is one with sub Glacial oceans under a kilometer thick layer of mostly water ice these are not completely absurd since we already have a few of them in the solar system so how

Could life sustain itself at the bottom of a completely dark cold ocean on earth deep down in our oceans in complete darkness in volcanically active areas there are hydrothermal vents called black smokers they spew out a cloud of

Black material and hot water providing a constant flow of minerals from Earth's mantle bacteria feed on the minerals and producer organic materials which attracts crustaceans bivalves snails fish octopus and tube worms up to 2

Metres long not only are hydrothermal vents home to an incredibly diverse group of living beings but also a contender for the place where life could have begun on earth billions of years ago in the dark

Ocean of a rogue planet similar events or volcanic activity could be the starting point and basis for complex ecosystems we can only imagine right now one upside an ecosystem in a rogue planet ocean has is that the environment

Is extremely stable the thick ice sheet protects it from all sorts of extinction events and as long as the energy from the core keeps on coming things stay pretty much the same the most likely forms of life are bacteria and other

Microorganisms but given enough time more complex alien animals could feed on the smaller beings and it's not impossible that intelligent life could emerge in such an environment if it did it would find itself in a

Pretty weird world constricted by an impassable wall of rock-hard ice at the top and bedrock at the bottom without any plants to store star energy there would be no wood oil or coal even if there were it's not like you'd discover

Fire at the bottom of an ocean without this energy metals may never be forged into useful things our intelligent alien friends might never break through the ice they might never realize that there is such a thing as outside and assumed

That their small world is all there is millions of generations might live and die in these dark oceans ignorant of the unbelievably big universe above the ice until the core of their planet cools off and all life vanishes as the oceans

Completely freeze the remnants of cultures and ecosystems will be trapped in an icy grave forever if you think about it it might be better not to be aware of all that but the concept is disturbing and exciting the universe

Might be teeming with life trapped on planets that are basically impossible to leave worlds like this could frequently pass the solar system without us even knowing maybe one day in the far future humans will set foot on one of these

Frozen worlds and try to say hello okay so we love gloomy future scenarios but let's go back to the present for a different kind of surprise many of you want to know how we make our videos so we made a video about that course Kazan

Teamed up with Skillshare our favorite online learning community for creators to make a three-part series of classes where you can learn our unique animation style with scenes from our videos but we're not the only ones telling you

Our tips and tricks they're a skill shared Premium Membership gives you unlimited access to more than 25,000 classes in all kinds of skills like writing design and animation from experts who know their stuff the Premium

Membership is as low as $10 a month but as a treat the first 1,000 people to use the link in the description will get their first two months for free if you've always wanted to see how we animate our videos and learn to do it

Yourself this is your chance you

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