EPSC201 Lecture 1 Notes.doc

3 Pages

Earth & Planetary Sciences
Course Code
EPSC 201
Anthony Williams- Jones

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EPSC201Lecture 1 NotesThe universe started with a Big Bang It was initially infinite in energy and infinitely small Since then the universe has been expanding outwards and cooling down It started off as a slow expansion and started to accelerate over time This is because as the mass got further away from other mass the gravity was less so it could travel even faster As the Universe expands more energy is being converted to mass through the equation Emc2 The universe was initially so hot that there was no matter It was all in the form of energyWe estimate the Big Bang occurred 137 billion years ago As the universe has expanded the distance between stars and galaxies has gradually increased Things are now found in clusters throughout the unive
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