All the substance in the solar system All the substance in our galaxy Everything that exists The Earth and the Moon together
The universe is very noisy The universe will end in a big explosion The universe started in a big explosion Loud noise is essential for life to exist
Red things get hotter Hot things get redder The object is moving slowly towards us The object is moving very quickly away from us
The same for all galaxies Bigger the further away it is Smaller the further away it is Brighter the further away it is
The universe is expanding The universe is contracting The universe is evaporating The universe is a huge black hole
The time it takes to warm up The temperature of the stars The colour of the stars The amount of mass present
Meaningful radio signals Distant TV programs Intergalactic economic activity Shifts in the time-space vortex