The Universe (Oxford AQA IGCSE Combined Science Double Award)
Revision Note
Written by: Ann Howell
Reviewed by: Caroline Carroll
The Universe
The universe
The Universe is a large collection of thousands of millions of galaxies
The Universe is also the name given to the entirety of space
A galaxy is a large collection of thousands of millions of stars
Stars are astronomical objects such as the Sun
These stars are part of solar systems
Each Solar system has a number of planets
The structure of the universe
The Milky Way
The Sun is one of billions of stars in a galaxy called the Milky Way
Other stars in the Milky Way galaxy are much further away from Earth than the Sun is
Some of these stars also have planets which orbit them
The Milky Way galaxy
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