August 2011
Beginner
256 pages
8h 15m
English
Content preview from The Manga Guide to the Universe
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180 Chapter 3 The Universe Was Born With a Big Bang
Do Aliens Exist?
In Chapter 4, we will discuss more about what it’s like at the edge of the universe. But first,
let’s consider one common question about the universe: Do aliens exist?
We’ll tell you the conclusion first. Most
scientists who study the universe believe
that other sentient beings like humans exist
somewhere. This conclusion is based on the
Cosmological Principle.
The Cosmological Principle is the hypoth-
esis that the universe is homogeneous (the
same kind) and isotropic (the same from any
direction) on large scales. What that means is if
you take a big chunk of universe, and c ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.