The moon is a very remarkable thing. The moon has always been up there throughout Earth’s history. It not only illuminates the night sky, but it also affects the Earth in different ways. Now, how you ever wondered what will happen if Earth had no moon, will there be life on Earth? Or the moon gets destroyed by a gigantic meteorite or it suddenly vanished?
Now, have you ever wondered what will happen if Earth had no moon? Will there be life on Earth?
The Beginning of Life
The ocean tides mirror life. The ebb and flow reflect the cyclic nature of the cosmos and many scientists and experts believe that life owes its origins to a large moon. The moon’s gravitational tug was responsible for this predictable tidal flux.
The current Earth-moon system may have started 4.5 billion years ago, as theory has it and the most widely accepted explanation, that the young Earth was hit by a Mars-sized celestial body called Theia. The resulting debris left over by the gigantic impact formed this permanent natural satellite. Within a few hundred years, the planet cooled and life emerged 3.8 billion years ago.
The cooling Earth probably had an ocean 4 billion years ago and the moon was probably half the distance as it is now. It’s gravitational pull resulted in extreme tidal waves that helped transport heat to form the equator to the poles and helped mix simple organisms to evolve into complex organisms.Earth and its newly formed moon exerted gravitational forces together, which slowed the Earth’s rotation and lengthening the day from 5 hours to 24 hours. In fact, to this day, the moon continues to slow down Earth’s rotation by 0.002 seconds every 100 years.
Earth and its newly formed moon exerted gravitational forces together, which slowed the Earth’s rotation and lengthened the day from 5 hours to 24 hours. In fact, to this day, the moon continues to slow down Earth’s rotation by 0.002 seconds every 100 years.
We Will Still Evolve Without the Moon
The world will be definitely different if there’s no moon, but it would not be so radically different that its absence would prevent humans from evolving or living. What If the moon suddenly vanished, would humans survive?
Many scientists believe the humans will still survive and nothing too severe will happen because the moon would never vanish instantaneously unless another celestial body as big as itself would make an impact.
But the moon is actually in the process of going further at a rate of 4 centimetres every year. The ocean tides or the length of the day is specifically crucial to the survival of humans, but at how the Earth’s tilt would greatly impact every living thing on the planet but it would take thousand of years before feeling the changes. If the life expectancy of a civilization is a few thousand years, the changes will be so slow that humans will have time to adapt.
Lunar gravitation is greater on the side of the earth facing the moon as compared to the centre of the planet. The gravitational attraction in the centre of the planet is stronger than on the opposite side of the planet, thus this makes ocean water bulge outward on either side of the planet. And because of the Earth’s rotation, there are two high tides in a day followed by low tides 6 hours later.If there’s no moon, there will be less high and low tides. There will still be tides because the Sun also has a gravitational tidal effect, but it will be just half of what the moon does because the sun is farther away.
If there’s no moon, there will be less high and low tides. There will still be tides because the Sun also has a gravitational tidal effect, but it will be just half of what the moon does because the sun is farther away.
The Moon as a Stabiliser
One of the most important effects of the Moon is how it stabilises the Earth’s rotation. When the Earth rotates, it wobbles slightly back and forth on its axis. Just imagine a top which simply doesn’t spin in a vertical position on a table. Without the moon, planet earth would be a wobbly place to live in.
The link between the spin and orbit is quite complicated but think of an athlete in the hammer throw event. When a hammer thrower spins around before letting go, he could nearly be rotating on a pinpoint, but as soon as he releases the hammer, he will take a couple of awkward steps and flails his arms to keep from falling down and maintain balance. The moon keeps Earth from wobbling violently as it spins.
Without the moon to act as a stabiliser, the Earth would sometimes tilt all the way over and possibly lie on its side in relation to its orbit around the sun. This would also result in extreme differences between daylight and temperatures all through the year. There will be times that the axis would be straight up and down, making night and day equally long all year round. There would be no seasons. There will be periods of more extreme weather and bigger differences between winter and summer.Just look at Mars, without
Just look at Mars, without a moon to stabilise it, the Martian climate and atmosphere have seen enormous changes in millions of years. The Martian ice at its poles sometimes moves all the way down to the equator. Imagine Africa to be blanketed by ice at intervals, it would be inconvenient and probably deadly.People do not have to worry
People do not have to worry because, by the time the moon orbits out further into space, humans may have colonised other planets, the Sun will have become a red giant and will have consumed the Earth and the moon……. And that’s millions of years from today.