Aliens
are also called
extraterrestrials
. This means
they’re from outside Earth. Aliens are from outer space.
They come from other planets. They come from other
worlds. They may even come from other
solar systems
.
Solar systems are made up of the sun and all the objects
that
orbit
it. Orbit means circle around.
There’s so much we don’t know about space. Scientists say
our sun is 1 of 200 billion stars. What if we’re not alone in
this universe? What if aliens are looking for us too?
AN ALIEN
INVASION?
COULD YOU SURVIVE
This book could save your life!
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