The idea
that that we are not the only lifeforms in the universe has captured the
imagination and interest of not only scientists but philosophers, historians
and even archaeologists.
The universe
is SO big, that it’s hard to put it into perspective. Now imagine if there
isn’t ONE universe but that there are more universe as scientists have
speculated in recent years.
Anyway, to
understand where we are located in the universe, and just how big it is, here
are 20 mind-bending images that promise to make you rethink everything you
thought about the universe, our solar system, Earth, and whether or not we are
alone in in our journey through space.
Welcome to
our solar system, our very own ‘private’ corner in the universe. Our star
system –which is composed of 8 planets and several ‘dwarf planets’— is
considered as a galactic oasis.
As you are
reading this, the Earth revolves around its own axis; it orbits the sun, the
sun moves through space at a staggering 792,000 kilometers per hour around the
galactic center, and our universe moves at a mind-bending 2.1 million
kilometers per hour.
In fact,
everything within the universe moves, from our planet –which rotates on its
axis at a speed of nearly 1700 kilometers per hour— to the solar system and
even the galaxy.
Here’s our
star system, oh and by the way, it’s still not fully explored.
But as I’ve
said above, we aren’t stationary so it looks more like this:
The largest
planet in our solar system is Jupiter. It’s size is truly glorious and to get
an idea as to how big the Gas Giant is, here’s an image that illustrates the
size of Jupiter compared to North America.
Here’s a
comparison of Earth and Jupiter.
Here is a
different perspective:
In terms of
diameter, this is what it looks like:
Here’s
another mind-boggling image, six Earth’s compared to the size of Saturn.
Now, let’s
take a look at the Sun compared to the remaining planets in our solar system:
Here’s a
comparison of the Earth and the Sun:
Even though
the sun might seem MASSIVE, the truth is that it’s actually really small
compared to other stars in the known universe. For example, VY Canis Majoris is
approximately 1,000,000,000 times bigger than our Sun.
There are
objects in the universe which are SOOO big, it’s hard to even imagine it. In
this image we see the size of the Milky Way Galaxy compared to some of the
known galaxies in the universe, located millions of light years away from
Earth.
Here, you
can check out a 46 billion-pixel Milky Way picture, which is considered the
largest astronomical image to date. Here’s a small part:
This is our
solar system’s neighborhood:
…Which is
actually small when you zoom out.
In this
image we have our local GALACTIC neighborhood:
However, if
you zoom further out, yu will find yourself looking at out neighboring galaxies
which are surrounded by other galaxies with their own neighboring galaxies.
Astronomers refer to this as the Virgo Supercluster.
The Laniakea
Supercluster is the galaxy supercluster that is home to the Milky Way and
100,000 other nearby galaxies.
The Laniakea
Supercluster encompasses 100,000 galaxies stretched out over 160 megaparsecs
(520 million light-years). It has the approximate mass of 1017 solar masses, or
a hundred thousand times that of our galaxy, which is almost the same as that
of the Horologium Supercluster. It consists of four subparts, which were known
previously as separate superclusters.
And guess
what, if you zoom further out you will realize that the Virgo Supercluster is
also surrounded by neighboring superclusters.
And here is
an image of the observable universe.
Now ask
yourself the question: Are we alone in the universe?
Nobody knowa.
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