That proto-Earth (called Gaia) clashed severely with another early planet, Theia, while tracing its orbit around the sun. Due to Gaia’s large size, it dominated the collision and began to form the shape of Earth as we know it today. Meanwhile, much of the debris from the collision ...
Second, there’s spin. The Earth spins much faster than the other rocky planets, and the Moon orbits around us at a surprisingly swift pace. Something deep in our past must have provided all that energy, and a collision with another protoplanet explains it with ease. https://www.youtube....
One theory suggests this is how Earth's moon was formed. In 1946, Canadian geologist Reginald Daly suggested that during Earth's formation, a Mars-sized protoplanet collided with Earth. The timing of the collision was later estimated to be roughly 4.51 billion years ago. This "giant-impact"...
Another implication of Theia containing CC material is that it would be isotopically distinct from the proto-Earth, which would strongly constrain the type of collision that led to the formation of the Moon. Unlike enstatite chondrites, which strongly resemble the Earth isotopically (Javoy, 1995;...
Dance with Theia So perhaps our Theia's collision was not just a cosmic death But also a means of fusion, and the day we took our first breath Towards a higher, truer ego in the vast and honeyed sky Leaving behind our mortal coil, silver cord now torn, the spirit flies Theia, Theia...
The collision speed may have been higher than originally assumed, and this higher velocity may have totally destroyed Theia. According to this modification, the composition of Theia is not so restricted, making a composition ofup to 50% water ice possible. ...
The current theory of how Earth and Moon came to be, as we know them today, is called the Giant-Impact Hypothesis. Essentially, billions of years ago, proto-Earth was all alone as it circled the Sun, until a fateful collision with a Mars-sized protop...