GEOG 1350 Lecture Notes - Lecture 10: Meteor Crater, Manicouagan Reservoir, Breccia
22 Apr 2018
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Document Summary
How was the solar system formed: scientists believe a cloud of gas and dust in space was disturbed by a supernova. When did this occur: 4. 6 billion years ago. The nebular hypothesis: the explosion made waves in space, this caused the formation of a solar nebula (a flattened cloud of gas and dust) The centre of the solar nebula grew hotter resulting in the formation of the sun. The outer edges causing clumps of particles to stick together and form planets. Galaxy: a cluster of billions of stars. Our solar system makes up a tiny portion of the milky way. Star: a hot glowing ball of gas that generates energy by converting hydrogen to helium. The sun is located approximately 30 quintillion km from the centre of the milky way galaxy. It takes light nearly 100,000 years to travel from one side of the galaxy to the other. In the core of the sun, the temperature is 15,000,000 c.
