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1 year ago (14/03/21) 310 Views

When the Sun is Lost

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Many years from today. You, an astronaut, came out of the cryogenic chamber after a long sleep. A habitable planet has been found to automatically wake you up. The planet is dark, so dark that you have no idea what is on its surface.Just looking at a dark sphere covered with stars in the sky. Gradually it entered the atmosphere and began to descend through the clouds. There is no light outside your spaceship. The faithful stars that have been around for so long have suddenly disappeared. The information moved your chest to the roof.That’s when you went back to the console and contacted the commander: “There is no sun on this planet! What am I doing here? ”

We are all residents of the Sun Kingdom. The sun is very important for almost all the animals on earth. We breathe in the byproduct of the photosynthesis that takes place with the help of sunlight. I have heard since childhood that sunlight contains vitamin D, which is good for bones. I have heard this from my childhood and after a few days the solar powered car will hit the road.Even if we don’t go to these places, we all like rainbows on sunny days or on cloudy days. The sun has come in literature as a symbol of strength and excellence. We also know the stories of Suryadev and his worshipers at different stages of history. The sun, our favorite sun. Think about it, what if this sun is gone one day?

You must have seen the planet ‘Hath’ in the movie Star Wars. The condition of the earth will be like that. A lump of colorless ice. Earth’s own thermostat system, which has a carbonate-silicate cycle, will become inactive in the absence of the sun. The earth will gradually lose heat. Ponds, rivers, lakes will be frozen first. Even if it takes a few decades, even the vast ocean will be transformed into a completely cool crystal.Although some of the heat inside the earth’s belly will continue to come out through the volcano. But that is far less than what is needed.

Nah, the relationship of the sun with the earth since before birth. So how tragic it is to lose the sun. How can this be made exciting? Let’s think of a Ferrari planet then. A planet that has never had a guardian like the sun. A detached, free planet.These planets do not revolve around a star but follow the stars. They are independent members of this galaxy. The matter may sound fictional but it is true. Several such free-floating gas giants have been found in recent times. Jupiter and Saturn are among the acquaintances when it comes to smoke monsters. Yes, they are not independent.According to a 2011 study published in Nature, the Milky Way galaxy contains two pet smoke monsters per star. Although this study is ultimately controversial, many scientists agree that it is possible to find a number of free-Earth-like rocky planets behind the existence of each smoke monster. And there are hundreds of billions of them in our galaxy.

A free world will deprive us of much of our real world. There will be no summer-monsoon cycle. There will be no need for any birthday celebration as there will be no sunset-sunrise. However, is it possible for life to exist on such a planet?

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To survive on a free-floating planet – that means liquid water is the first thing we need to have something like us. And the planet needs warmth to keep the water liquid. But, the space is strangely cool, just a few degrees above absolute zero temperature. How will heat come to a planet without the sun? There is a heated state inside all the planets.Most of the earth’s underlying heat is caused by the collision that created the earth. And a large part of it is stuck in the center and flows very slowly to the surface.Although this energy will remain for more target years, it is only a fraction of a thousandth of the heat that comes from the sun every day. A floating planet without a sun can never lose this inherent heat. Like a person with hypothermia, he actually needs a very good blanket.

There may be 50 billion free-floating planets in our galaxy.

 

The ice layer on the planet’s surface will act as a good insulator and be able to retain heat. If the thickness of this layer is right then it is possible to have sea under it. However, in order to prevent the sea from becoming ice for the target year, the ice level should be 10 km thick even if it is low. Jupiter’s satellites Europa and Ganymede have such ice-covered seas.However, it is not possible to transform the Earth into such an ice-covered planet without a water deal with a cosmic entity in exchange for humans. Because as much water as the earth has on its own, the global ice level will be only a few kilometers. Volcanoes or other underground heat sources from below such a level may make it possible to supply some liquid water regionally. But the sea? Dreams will not be liquid.

There is nothing to despair about, there are more options. A modified thick atmosphere but can be quite heat resistant. This makes it possible to keep water on the surface of a free-floating planet without ice cover. The most efficient gas for this work is hydrogen. It is an excellent thermal insulator and maintains a gaseous state even in the extreme cold of space.If the Earth were to move out of the Sun’s orbit freely and engage itself in an atmosphere 10 to 100 times thicker filled with hydrogen, it would be possible to keep the surface temperature a little above freezing, even if it doesn’t feel good. There will be lakes, waves will play the sea (even life can exist!). A planet illuminated by the light of distant stars will be invisible to the human eye.Like Uranus or Neptune, they will have different levels of clouds. No light will reach the land, only darkness when you look at the sky from there.

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Liquid water is better. But is it possible for life to exist without the sun? Yes, it is possible. There are as many animals on earth as there are, but they are not dependent on the sun. Plants and some microorganisms are directly dependent on solar energy. These are called primary producers in the language of ecology, and they convert sunlight into chemical energy.However, cows, goats, humans are indirectly dependent on sunlight as they eat grass / fruits and cows and goats. However, scientists have found some organisms that do not need the sun. They are called Chemototrophs, found in hydrothermal vents at the bottom of the ocean. They use the temperature changes of these hydrothermal vents to carry out various chemical reactions in the body.Its efficiency is one thousandth of that compared to photosynthesis. On a free-floating dark planet, however, the ability to use the inherently limited energy efficiently would be the work of a truly intelligent being.

This Chemototroph will be the basis of the biosphere of such a free independent planet. These can supply the organic carbon needed for other advanced animals (if any). However, since their energy conversion efficiency is quite low. Their number should be much higher. When hundreds of mangoes are made from one tree in the world, there may be hundreds of mangoes made from one tree.

The question may be, how will life begin on a free-floating planet? It’s hard to say, yet I don’t really know how life originated in this world. However, there are a number of theories, including the ‘Deep Sea Vent Hypothesis’, which suggests that hydrothermal vents are the lifeblood of early life.The roaming planet also has a large number of hydrothermal cracks. So it makes more sense to create the vibrations of the first life of that free planet in a completely home environment, rather than an alien spaceship or a cosmic universe.

Well then who will be the members of the base biosphere of this dark planet? If we think of an ecosystem similar to them on Earth, we have to go deeper into the ocean. So deep where the light does not reach. Excellent local ecosystems have developed near the hydrothermal cracks at such depths. It is home to a variety of oyster plants, a two-meter-long tube worm, a scaly-foot snail, and an eyeless shrimp.Yes, the primary producer here is Chemototroph. The bacterial thick layer they form is at the beginning of this complex food chain. On a free-floating planet, a unique biosphere may form near a local thermal source, each with a different species. Nor will any universal vitality be created by the interaction of these distinct ecosystems.

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We may not want to go to a planet like that, not even to the ice-covered ones. Because the harder it is to penetrate a layer of ice a few miles deep, the more difficult it is to live inside. However, the thick atmosphere can be traced to any planet. Its surface can easily touch the lake or the sea. The problem is, its air is not at all breathable for humans.As mentioned earlier, the planet will have a thick layer of hydrogen in its atmosphere. And hydrogen and oxygen cannot be happy together. So, before starting the journey, one has to find out where the biosphere of the intended planet is. It can be easily used by collecting from the surface of the planet, or the Indus has to be irrigated.If all goes well, the absence of the sun will be a huge obstacle to food production, and we don’t even know if the local members are edible at all. So a free-floating planet may not be as attractive as the primary goal when human civilization embarks on a mission to spread galaxies.

However, such a planet can be considered in the question of distance. In the solar system comes the count of every faint object on the side, far from the end. An Earth-like orbiting planet may be our closest habitable cosmic neighbor. A little detour from there, and if you like, it could be the first step in spreading to our galaxy.

If you come to such a planet voluntarily or after admitting a conspiracy, what else will you regret? Turn on the floodlights of the spacecraft. The first photon particle of a billion years will hit the surface of the planet at your behest. If your mission is to establish a colony, you must keep it safe from toxic air.Children cannot play outside without a spacesuit. The consolation in all this is that your sacrifice was very valuable in the journey of humanity to the stars.

Inspired by Sean Raymond’s Life in the Dark.

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