Why is there no life on moon when it is about the same distance the earth is from the sun
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Without any atmosphere, or the ability to create one, the moon cannot provide the basic conditions for life to develop.
When you stare up into the night sky, it’s hard to miss the brightest object and our closest celestial neighbor – the moon. It has fascinated humans for thousands of years, was worshipped as a god in the past, and has inspired countless generations to wonder whether alien life may be waiting for us on our doorstep. However, with the advent of space travel, our 6 Apollo missions to the moon, and our improved ability to learn about the composition of celestial bodies from Earth, we now know that the moon cannot and never has supported life.
The questions, therefore, is why does the moon contain no signs of life?
What is the Moon?
The moon is our planet’s natural satellite, orbiting Earth every 27.3 days and rotating on its own axis every 27 days. Interestingly enough, this similarity in its rotation and orbit means that the same side of the moon always faces Earth, a phenomenon called synchronous rotation. The moon is roughly 27% the size of the Earth, with a diameter of 3,474 kilometers.
There is some debate about how the moon was formed, but the prevailing theory is the giant-impact theory, which argues that in the early days of our planet’s formation, before any life had developed, another planetary body the size of Mars crashed into the young Earth, jettisoning billions of tons of elemental material into the orbit around the planet. There was so much debris that gravity was able to form and pull it together, forming what we know today as the moon. Since that point, the Moon’s orbit has regularized around our planet, so accurately that we base our calendar progression off its changing phases.
However, while the moon often feels like another planet, a moon is very different than a planetary body. The most basic different is that a planet orbits a star, whereas a moon orbits a planet. Furthermore, in the case ofEarth and its moon, the composition of the planet is different. At the center of the Earth is a dense core of heavy metals, which creates a magnetic field and a strong gravitational pull, which enables the planet to retain an atmosphere. Without our atmosphere, none of us would be here today, nor would you be reading this article!
Does the Moon have an atmosphere?
As mentioned above, the moon does not have the same composition as the Earth, and while some of the elements present on the moon are the same, this is likely because of the moon’s formation (the Giant-Impact Theory). In general, this different in composition means that the moon cannot have an atmosphere because it is not geologically active. Without the release or production of gases in the core of a planetary body or moon, an atmosphere would be unable to form – atmospheres don’t happen spontaneously!
Furthermore, even if those gases were to be produced or released, the low gravity of the moon would make it difficult to hold onto those molecules. For a molecule to be released into the emptiness of space, they need to exceed the escape velocity of the planet or moon. When the sun strikes these molecules, it energizes them, and if they are moving fast enough to overcome the pull of gravity, they will escape.
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When you stare up into the night sky, it’s hard to miss the brightest object and our closest celestial neighbor – the moon. It has fascinated humans for thousands of years, was worshipped as a god in the past, and has inspired countless generations to wonder whether alien life may be waiting for us on our doorstep. However, with the advent of space travel, our 6 Apollo missions to the moon, and our improved ability to learn about the composition of celestial bodies from Earth, we now know that the moon cannot and never has supported life.
The questions, therefore, is why does the moon contain no signs of life?
What is the Moon?
The moon is our planet’s natural satellite, orbiting Earth every 27.3 days and rotating on its own axis every 27 days. Interestingly enough, this similarity in its rotation and orbit means that the same side of the moon always faces Earth, a phenomenon called synchronous rotation. The moon is roughly 27% the size of the Earth, with a diameter of 3,474 kilometers.
There is some debate about how the moon was formed, but the prevailing theory is the giant-impact theory, which argues that in the early days of our planet’s formation, before any life had developed, another planetary body the size of Mars crashed into the young Earth, jettisoning billions of tons of elemental material into the orbit around the planet. There was so much debris that gravity was able to form and pull it together, forming what we know today as the moon. Since that point, the Moon’s orbit has regularized around our planet, so accurately that we base our calendar progression off its changing phases.
However, while the moon often feels like another planet, a moon is very different than a planetary body. The most basic different is that a planet orbits a star, whereas a moon orbits a planet. Furthermore, in the case ofEarth and its moon, the composition of the planet is different. At the center of the Earth is a dense core of heavy metals, which creates a magnetic field and a strong gravitational pull, which enables the planet to retain an atmosphere. Without our atmosphere, none of us would be here today, nor would you be reading this article!
Does the Moon have an atmosphere?
As mentioned above, the moon does not have the same composition as the Earth, and while some of the elements present on the moon are the same, this is likely because of the moon’s formation (the Giant-Impact Theory). In general, this different in composition means that the moon cannot have an atmosphere because it is not geologically active. Without the release or production of gases in the core of a planetary body or moon, an atmosphere would be unable to form – atmospheres don’t happen spontaneously!
Furthermore, even if those gases were to be produced or released, the low gravity of the moon would make it difficult to hold onto those molecules. For a molecule to be released into the emptiness of space, they need to exceed the escape velocity of the planet or moon. When the sun strikes these molecules, it energizes them, and if they are moving fast enough to overcome the pull of gravity, they will escape.
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To survive in any place we need water, air to breathe.But on moon there is no water as well as no oxygen to breathe.So without those we cannot survive there.
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