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Space and its mysteries
About how long ago do scientists believe the universe began?
137 million years
1,370 million years
13,700 million years
Which is the main scientific theory for the origin of the universe?
The Big Bang Theory
The Oscillating Universe Theory
The Steady State Theory
What can a red giant star become?
A red dwarf star
A supernova or a white dwarf star
A supernova or a white giant star
Which piece of evidence supports the Big Bang theory?
The more distant galaxies are moving the slowest.
The more distant galaxies are moving the quickest.
The more distant galaxies are moving towards us.
Which object is the densest?
What material have scientists suggested explains some of the unexpected observations of the universe?