- Oh hey, everyone, I hope
you're having a great day full of colliding universes relative time in a reality that you create yourself. (chuckles) Oh, you didn't know any of that? Let me tell you. As time goes on, we learn
more and more about space. But some of the things
that we are learning confuse scientists and astrologists to the point where they can only theorize why certain things are happening. And if any of the following
theories prove to be true, they will fundamentally change everything that we thought we knew about space. (light music)
(whooshing) Here are 10 Space Theories
That Will Blow Your Mind! Number 10 is the sun's twin star. It's possible that our
own sun has a dark twin. Referred to as Nemesis, this star could be orbiting our own solar system. Most star systems are
what as known as binary. This simply means that there are two stars at the center of a star system orbiting each other instead of one. Because of some strange
gravitational anomalies in our outer solar system, it's been hypothesized that our own sun may also have a dark star twin, which is either a brown or red dwarf. Uh, Matt, that's offensive, they prefer to be known as little stars. These objects haven't
quite reached the mass to spark fusion reactions,
like main sequence stars. So, they remain relatively
cool and give off little light. Interestingly, one theory
suggests that extinction events on Earth happen at regular intervals. It's possible that the
Nemesis star comes close Earth every 26 million years or so and wipes out much of the life here. (light music)
(whooshing) Number nine is the holographic universe. Some physicists believe that our entire universe is a hologram. This theory states that
one of the best ways to describe the universe is to think of it as a two dimensional image projected onto something beneath it. In this way, the universe can
be thought of as a holograph displayed on a cosmological structure, kind of like a cinema screen. Though it sounds like science fiction, the holographic principle
is supported by the fact that the equations used
to describe the universe, as a hologram, can also be used to solve some theoretical issues with black holes. So, when we experience the
universe as three dimensions, it could be that we are always just part of a holographic projection, and that the true nature
of reality, the projector, is buried somewhere out of sight. In this way, we never get to see what reality truly is at its base level. (light music)
(whooshing) Number eight is the asteroid
belt's planet origin. Our solar system is home
to a massive asteroid belt, which surrounds the sun
between Mars and Jupiter. There are many theories as
to how this huge collection of orbiting rocks came to be. But one is that many, if
not all of the asteroids, are actually the remaining
debris of a destroyed planet. Yes, this theory is absolutely correct. Now, it's true that this theory has fallen out of favor in recent years, but now, physicists
believe the asteroid belt is made out of rock structures
known as planetesimals, which never quite
reached a big enough mass to form a new planet in the first place. But there are still some who believe there was another planet
orbiting between Mars and Jupiter at some point in the past. This planet was then destroyed, either by a massive impact or by some gravitational process, and what we see today
in the asteroid field is effectively that planet's grave. Death Star! (coughing) Oh, I got a cough. (light music)
(whooshing) Number seven are colliding universes. A current idea in theoretical physics is that our universe is
just one of many universes. While this theory is popular, there's not a lot of
empirical evidence for it. I mean, after all, how
do you observe something outside of the universe that you're in. But there is some tantalizing information in our own universe which
suggests at some point in the past it may have collided with
one of these other universes. For me, that's exactly
what the Mandela effect is. If you don't know what
that is, look it up! It'll cause you some sleepless nights. In 2015, astronomers
found a large cold spot in the structure of the cosmos, and some physicists
have since hypothesized that it's the direct
result of another universe bumping into our own. Others hypothesize that
our universe itself was created when two parent universes smashed into each other,
creating the Big Bang. Two parents, the Big Bang,
it was a dirty joke there. Anyway, from this perspective, it could be that our very
existence relied upon the destruction of another
civilization's reality. (light music)
(whooshing) Number six is repeating Earths. One theory proposed by astrophysicists is that there are other
exact copies of our planet somewhere else in the universe. This alternative to the
multiverse theory of universes states that our own
universe continues far past what we've observed so far
and may even be infinite. Many physicists believe that these other regions of our universe, which we can't see yet
because of the distance, contains other galaxies like our own. If our universe is indeed infinite, then its likely that every possibility plays out an infinite number of times. This means that there's an
infinite number of Earths, and therefore, an infinite
number of Matt Santoros! Just let that sink in, there's a whole lot of baldness out there in every universe, so enjoy. (light music)
(whooshing) Number five is relative time. Albert Einstein proposed his theory of general relativity in 1915. And one strange one quirk of it suggests that time can
move at different rates, depending on your location, your speed, and your mass. It's difficult to wrap
your head around the fact that time is relative and
not the same for everyone. But this is perfectly illustrated by what's known as the twin paradox. Imagine two twin sisters, one of them lives on Earth, while the other takes a return trip away from our planet close
to the speed of light. By the time the space traveling
twin returns to Earth, she's only aged a couple of years. But for the twin who
remained on our planet, time traveled much faster. In fact, she's aged more than 10 years. This is known as time dilation and has even been proven in experiments. So there you go, the cure to aging. Just travel around the
planet at light speed. It might rip your body
and your existence apart, but you won't age! (light music)
(whooshing) Number four is consciousness
creates the cosmos. That's right, you think
you're watching a bald man with big teeth right now
give ya facts, but are you? You are, 'cause you're imagining it. A controversial theory to
explain how the universe began is that consciousness came first and actually helped produce
the universe we see today. Some physicists believe
that, at a fundamental level, reality is not well-defined. In fact, all subatomic particles are in what's known as super position. This means that each particle is in all possible locations at the same time, and that only when a conscious
being observes that particle does it snap into one specific place. From this, some have
suggested that reality itself does not exist as we know it
without a conscious observer. In other words, you! It's possible, then, that as
we stare through a telescope farther and farther back to the beginning of the known universe, that
we're not just bringing the stars and galaxies into focus, but actually bringing them
into existence itself. (light music)
(whooshing) Number three is cosmic genocide. There are several potential
theories as to why we haven't found evidence
for alien civilizations yet, but the most frightening is that genocide on a galactic scale is taking place. Given that Earth is not
really a special planet, and that other similar planets
revolve around similar suns, and should possess all the
necessary ingredients for life, the universe should be teaming
with other civilizations. Some believe that the reason
no other civilizations have been found so far
is that they have either been wiped out or are
keeping a low profile. This may be because an ancient
alien race or technology is systematically wiping out any other intelligent
civilization it finds. Mm, maybe that's why we
haven't been wiped out yet. They looked at Earth and was like, "Oh, we don't have to worry
about intelligence there." It's easy then to
understand why physicists, such as Stephen Hawking,
believed that we too should keep ourselves hidden. After all, you never know who's watching. (whistling) (light music)
(whooshing) Number two is evolving universes. Evolution may not just
describe how life evolves, but how universes themselves are born. The accepted mechanism for evolution is known as natural selection, where only surviving
animals are able to pass on their genetic traits to their children. In other words, survival of the fittest. One theory suggest that, in a similar way, at the center of a black hole, another universe is created
from its infinite gravity. Furthermore, such a new
universe may possess all of the characteristics of our own, plus some random mutations
or differences along the way. The universe then may
develop its own black holes, which again, carry on the family
traits of our own universe. In this way, reality can be seen as an interconnected
family tree of universes. Who knows how many universes
it took to birth our own? (light music)
(whooshing) And number one is our warped universe. Our common idea of the universe is that it's spherical in shape and expanding at an ever-growing rate. However, one theory challenges that idea and states that the universe may be packed into a much smaller space than it seems. Developed by Professor Frank Steiner, this model of the universe uses precise mathematical calculations to explain why there's an unevenness in the fabric of our reality. Instead of expanding
ever out from this view, space bends back in on itself. So the vast distances
which we see in space are warped and folded to
fit in a smaller area. If we were then to fly
to the edges of space, instead of meeting a boundary, we would find ourselves flying back towards our original point of origin as the universe curves back in on itself. Well, there you go, E.T. go home, but E.T. didn't mean to go home. E.T. confused. (softly groans) (eerie mysterious music)
