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Solar System Formation
Detlev Van Ravenswaay
Photograph - Photograph
Solar system formation. Artwork of the early Sun when it was still a protostar about 4.7 billion years ago. The Sun is surrounded by an inter- stellar cloud (nebula) of glowing dust and gas. The Sun was created by the gravitational collapse of this nebula which was possibly triggered by shock waves from a nearby exploding star (supernova). As the nebula condensed, its parti- cles converted their gravitational potential energy into heat. The proto-Sun became so hot that nuclear reactions started in its core and it became a true star. The planets formed in the outer areas of the nebula.
May 2nd, 2013
Viewed 4 Times - Last Visitor from Redwood City, CA on 07/09/2014 at 5:54 PM
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