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Space Review

Horizontales
The ______________ theory explains how the universe formed.
What astronomer noticed that other galaxies are moving away from us?
The ______________ spectrum is the range of waves that carry energy. It ranges from gamma rays to radio waves.
_________ is the emission of energy in the form of waves.
When objects in space are moving away from us, their wavelengths get longer which is called ________.
Verticales
The ___________ is all space, time, matter, and energy. It contains all the stars, planets, and galaxies.
When objects in space are moving toward us, their wavelengths get shorter which is called ________.
Astronomers use ___________ to determine the composition and motion of objects in space.
Hydrogen and Helium are examples of an ________.
Edwin Hubble discovered that the furthest _________ are moving faster than the ones closer to us.