Planet EarthPlanet Earth

Dusty Spiral Galaxy

Planetary Science

• Origin of Earth:• Big Bang

• Relevance to Earth Sciences:

• Elemental Distribution

Big BangBig Bang

Birth of the Solar System

Planetary Science

• Formation of Planet from Dust and Gases:

• “Swirling Eddies”• Accretion• Melting• Differentiation

• Relevance to Earth Sciences:

• Composition of Earth

• Density-mediated layering

• Earth’s Heat Engine

Planets and Satellites:

• How many Planets are there, and what is their order in terms of distance from the Sun?

• What is a Satellite?• How many are there?

Solar System