The Earth we know today is filled with life in various forms. According to an expert, the presence of life on the planet was influenced by an impact that took place billions of years ago. A planet with a size similar to that of Mars crashed into Earth, leading to a cataclysmic event.
The planet which crashed into Earth is known as Theia, and it is theorized that the impact took place almost 4.5 billion years ago. Forces involved in the event were so intense that a portion of Earth’s crust was propelled into space along with other debris. In time they started to form an agglomeration that paved the way towards the formation of the moon.
Previous research infers that the sun and the moon have played an essential role in the evolution of the planets. An obvious example is represented by the gravitational pull exerted by the two objects, which powers the tides of the oceans.
Earth Would Have Been Different if a Space Body Had Not Crashed Into It Billions of Years Ago
On a popular question-and-answer platform a retired expert tried to offer more information about the way in which our planet would have looked like if there was no impact. He mentioned that Earth would have looked like Europa, Jupiter’s famous moon. Europa is an ocean world coated in an icy crust, and the harsh conditions prevented the formation of life on the object.
The excessive amount of water present on Earth would have led to a similar fate even if the water had remained in a liquid state. A planetary ocean would have covered most of the surface, and it would have a depth of several kilometers, even in the shallowest areas.
In that case, there would have been no minerals in the superior layers of the ocean and no light at the bottom. Primitive life may have existed around volcanic vents, but that would have been all.