This module is about the origin of the Earth, and is in three parts. The first part is about how we think the Universe formed, and the evidence for the Big Bang hypothesis for the origin of the Universe. The second part of the module is about galaxies and stars — how they form and how they are able to generate the chemical elements. In the third part of the module we consider the origin of planets and how we think our own planetary system formed.
Many of the processes we are considering took place a very long time ago. In the text that follows time is referred to in millions of years (Ma -106 yrs) or billions of years (Ga — 109 yrs).
Printable versions of this module are available in pdf (2,177KB), rtf (3,258KB) and Word doc (376KB) format.© Hugh Rollinson, 2001
Page created by Phil Gravestock, August 2001