If the earth has no moon ...

The longest eclipse of the past 11 years on the evening of June 15 has once again attracted the attention of astronomers and admired Hang. What will happen if the earth doesn't have this natural companion?

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That is the question that scientists always seek for long-term answers. Bill Hartmann, expert of Planetary Science Institute in Tuscon, Arizona (USA), in 1975 hypothesized the giant impact impact to explain the origin of the moon.

Accordingly, based on computer models and specimens taken from the moon, Mr. Hartmann suggested that a Mars-sized asteroid had collided with the earth from the beginning of the green planet to be born about 4, 5 billion years ago. The consequences of the collision were layers of rock and dust, which gradually condensed and accumulated into the moon. The theory also explains why the moon has no iron core like other members of the solar system, reported by Space.com .

The moon is not merely a muse of poetry - Photo : Nature

So which scenario will happen in the case of no collision a few billion years ago? Life on earth will have a completely different face, with shorter migration cycles and day-night cycles, if these phenomena exist. Tide is also a phenomenon caused by the moon, which helps stir the oceans and plays a role in mediating the chemicals that make up life from the mainland into the sea. The gravitational pull of the moon slows the Earth's rotation from its initial 6-hour-day cycle to the current 24-hour day. It also plays a role in stabilizing the tilt of the earth's axis, allowing us to have four seasons to date.

Therefore, life without the moon will be radically different from today. The day and night cycle will be more bustling, and the species must increase their migratory activity to avoid harsh winter. Without the moon, it is possible that people will never be interested in escaping from the planet in space travel, referring to the missions of seeking life out of space.