Solar NEbula THeory

Earth's creation(4.6 Billion years Ago)

• Its based on a cloud of interstellar gas that forms the solar system.
• It starts as a large cloud of diffused gas
• The large cloud dosen't "accept" gravity so it collapses and spins faster
• Keeps hitting particles until it flattens into a disk
• It grows bigger and bigger then turns into Earth over millions of years

First Piece of evidence

• All the planets orbit the Sun in the same direction and most moons also go the same way
• Therefore, they are all formed from a disk of debris around the Protosun 

SEcond piece of evidence

• Planets have the characteristics to form from a disk of hydrogen around the Sun
• Planets near the Sun have little hydrogen so the disk would-
• be to hot to condense

THird piece of evidence

• The Sun is mostly composed of hydrogen and can be tested
• Since it is hydrogen it generates heat by nuclear fusion in the core

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