Marine science

Stars and Seas

Stars🌠 and Seas🌊

 

The origin of Earth is linked to that of the solar system and the galaxies.

Our solar system
The galaxy

The universe apparently had a beginning called the big bang that occurred 13.7 billion years ago.

the Big Bang theory

The Big Bang theory describes how the universe expanded from an initial state of high density and temperature.

One second after the big bang, the temperature of the universe was as high as 10 billion degrees Celsius. Immediately after, the universe began to cool, cooling time up to 200 million years, the entire universe is filled with darkness, there is no trace of light, all the light as if in the moment of the explosion has been released all finished.

https://en.wikipedia.org/wiki/Big_Bang

All of the mass and energy of the universe was concentrated at a geometric point at the beginning of space and time, the moment when the expansion of the universe began.We don’t know what initiated the expansion, but it continues today and will probably continue for billions of years, perhaps forever.

Stars and Planets are contained within galaxies. Most of the substance of Earth, its ocean, and all living things, was formed by stars. Every chemical element heavier than hydrogen was manufactured and released into space by stars. Our sun, like all normal stars, is powered by nuclear fusion.

A filament of hot gas erupts from the face of our sun. Like all normal stars, the sun is powered by nuclear fusion – the welding together of small atoms to make larger ones. The entire Earth could easily fit into this filament’s outstretched arms.

 

Earth Accumulated in Layers Sorted by Density

The Sun stripped away Earth’s first atmosphere Gases, including water vapor, released by the process of out-gassing, replaced the first atmosphere. Water vapor in the atmosphere condensed into clouds. Eventually, the surface cooled enough for water to collect in basins.

Comets may have delivered some of Earth’s surface water. Intense bombardment of the early Earth by large bodies – comets and asteroids – probably lasted until about 3.8 billion years ago.

from Marine Science class~🌌

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