Year 9 NSW » Science » The Big Bang and our universe » What things in our universe can tell us

Topic : What things in our universe can tell us

In this topic you will learn...

Chapter 1 : Black holes and quasars

Black holes and quasars are distant energy sources known to modern scientists
When very large supernovae collapse completely they become black holes
A black hole is a region of space in which the pull of gravity is so strong that nothing can escape it
A typical quasar produces more light each second than an entire galaxy of stars
A light year is the distance light travels in a vacuum in one Julian year

Chapter 2 : Stars and nebulae

Chapter 3 : Satellites

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