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Nearby star explodes
Because of this, dust and gas condensed and formed the sun. -
planet formation
what was happening to the sun was happening to the earth on a smaller scale, when the bombardment ended and the planet had accreted the earth was molten and did not have an atmosphere -
Atmosphere and core form
After a while, the outside of the planet formed a crust around the outside and a hot core on the inside. Volcanoes released gases that would for the atmosphere. -
Moon formation
An asteroid about the size of Mars collided with the Earth, shooting debris into orbit. later that debris would condense and form the moon