The absence of the Moon would significantly alter life on Earth. One major impact would be on the planet's rotation, resulting in much shorter days lasting only six to twelve hours.
If there is no moon then there will be Faster earth rotation,.
What would happen if we had no Moon?
Wild Weather
("Satellite Meteorology")
There would be increased wind and storms (Kershner, 2018)
Our axis stays tilted at twenty-three point five degrees. But without the moon the earth might tilt too far over or hardly tilt at all leading to no seasons or even extreme seasons. ("What Would Happen If There Were No Moon?")
We might find our self with 42 continuous years of sunlight, followed by 42 years darkness. (Kershner, 2018)
Change the way life evolved on Earth, allowing for the existence of more complex multi-cellular organisms compared to a planet where drastic climatic change would allow only small, robust organisms to survive. (Astrobiology Magazine, 2007)
We might be from upright to sideways. With a near-zero degree tilt we'd barely see a few minutes of sun.(Kershner, 2018)
Calm Oceans
A moonless earth would also change the size of ocean tides making them about one-third as high as they are now.("What Would Happen If There Were No Moon?").
Lunar gravitation is greater on the side of Earth facing the Moon than it is on the centre of our planet. And its gravitational attraction on the centre of the Earth is stronger than on the opposite side of our planet. This makes ocean water bulge outward on either side of the planet.(''What would we do without the moon'').
A lot of water would be redistributed toward the polar regions.(Astrobiology Magazine, 2007)
it would change the global altitude of the ocean.(Astrobiology Magazine, 2007)
The moon also affects the altitude of the ocean; the gravitational pull of the moon causes a "bulge" of water around the middle of the earth.(Kershner, 2018)
the sun would "take over" tidal changes, but it just doesn't have the same pull as the moon.(Kershner, 2018)
Faster Earth Rotation
("What Would Happen If There Were No Moon?", 2016)
Without a gravitational pull , days would go by in a blink ("What Would Happen If There Were No Moon?")
Earth's rotation slows down over time due to the gravitational force, or pull of the moon.("What Would Happen If There Were No Moon?")
Without the moon, a day on earth would only last six to twelve hours.("What Would Happen If There Were No Moon?")
There could be more than a thousand days in one year ("What Would Happen If There Were No Moon?").
