"The Universe comprises everything we perceive to
physically
exist, the entirety of
space and
time, all forms of
matter and
energy, and the
physical laws and
constants that govern them. However, the term
Universe may be used in slightly different contextual
senses, denoting such concepts as the
cosmos, the
world, or
Nature". Source:
Wikipedia "The Universe is
13.7 billion years old The Earth is not flat –
but the Universe is A huge chunk of it is made up
of things we can’t see It was hot when it was
young It will be cold when it grows old" Source:
Universe Today
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"The Universe comprises everything we perceive to