The Loneliest Planet: How Is Life On Rogue Planets?

The Loneliest Planet: How Is Life On Rogue Planets?

From what it is, to what it might be like
to live there, join me as we explore The Loneliest Planet: HOw is LIfe on Rogue Planets? I know what you’re thinking, “wait, what is
a rogue planet?” Out there, somewhere in the universe, are
planets that are both just like all the others in the universe, and yet are infinitely different. These are known as Rogue Planets. And they’re called that for a very simple
reason. It’s because these planets, for whatever reason,
were born to the universe…without being tied to a star. Confused? I’ll explain. If you believe in the big bang version of
the creation of the universe, then you believe that when the “explosion of matter” happened,
it flung everything out into the universe at large, and is even still expanding to this
day. Galaxies formed via gravitational forces via
the stars and planets that were made. Yet, the force apparently “kicked out” many
planets, and they’re now roaming the universe at large. There’s even speculation that a rogue planet
is just outside our solar system. The idea of other planets being just outside
our realm is rather enticing, but it’s also scary. Because a new planet suddenly appearing could
throw our solar system into chaos. And if it’s going fast enough as it hurdles
through space, it could even crash into another planet. Maybe even Earth. There are some scientists who believe that
the Earth has already collided with a rogue planet. And it was this collision that created the
moon that we see above us. Showing that even in great destruction, there
can be wonderful creation. Now the question should be asking is, “well
how do we know that these Rogue Planets exist?” A very sound question given our more “rooted”
place in the universe as well as how we are able to look at the stars and galaxies around
us. Basically, we noticed some oddities as we
looked at the stars themselves. In 2011, a study was published via scientists
from Osaka University. They looked at over 50 million stars and noticed
over 170 anomalies that didn’t make sense at first. Objects that were bending light in a way that
most objects don’t. As they looked deeper, they realized that
the majority of these objects were bending lights from stars or other objects, making
them stand out from the crowd if you will. But ten of these objects were revealed to
be not be anywhere close to any stars. What’s more, they were as large as planets,
and sometimes even as large as certain types of stars! It was here that we truly found Rogue Planets,
and realized that they were moving through space at great speeds despite not having a
tether to a parent star. So how do they move then? Well, not unlike virtually every object in
the Milky Way Galaxy, they are tethered loosely by the galaxy itself, which has a gravity
field that keeps the stars and planets in line so that they “go with the flow” of the
galaxy if you will while not shooting out into other galaxies or deep space. The problem with Rogue Planets though is that
because they don’t have a closer tether to orbit around (like the Earth does with the
sun) it’s only loosely guided by the pull of the galaxy itself, and thus hurdles through
unknown reaches of space. In many ways, a Rogue Planet is the “loneliest
planet” in the universe. Not because it may not have life on it (which
we’ll get to in a bit), but because unlike virtually every other planet in the known
universe, it doesn’t get the light of a sun to show off its beauty, or get the warmth
of the star to help make it more than what it is. And because it’s a Rogue Planet (based on
our knowledge of planets and their relationships to their stars) scientists believe that the
whole entity is cold, frozen, and dark. Now, we noted a little bit earlier that these
Rogue Planets were “kicked out” of their systems and that they’re going through space at a
good clip, but how fast are they going exactly? Well, we honestly don’t know, because it’s
really hard to find and track these planets, however, we can do some comparisons based
on a certain other thing we know can go rogue…a star. That’s right, stars have gone rogue in the
past and we’ve been able to track them, and when they go throughout space without a tether,
they can reach speeds of up to 1.5 million miles per hour. So does that mean a Rogue Planet can go that
fast? Sure, it could, but more than likely, it goes
a lot faster. Why is that? Do recall that stars and planets may have
similar sizes at times, but that doesn’t mean they have the same mass. A star always has more mass than a planet,
and so since Rogue Planets are smaller than stars and have less mass, that means that
it takes less time and effort to move through space. So, knowing this fact based on basic physics,
scientists have calculated that Rogue Planets could barrel through space at a rate of 10-30
million miles per hour. On the high side, that would mean that these
Rogue Planets are traveling about 5% the speed of light. And many, MANY times greater than anything
that Earth can fling into space even with our best technology. Could you imagine if one of these Rogue Planets
just randomly barreled into our universe? It’s very likely that we wouldn’t be able
to do anything but watch as it approaches and potentially wrecks everything. Because even though the distance between Earth
and Pluto is 3.2 billion miles away, depending on the size and speed of the planet, there’s
nothing we could do to deter or block its path. After all, we can barely do anything to block
a large asteroid, let alone a planet! On that grim note, let me ask you a question. How many Rogue Planets do you believe are
out there in the Milky Way Galaxy? We know/knew of at least ten via the survey
from 2011. But how many do you think are out there in
the stars? The truth is that we have no clue, and just
as scary, scientists are actually debating the numbers…and they have a very large range. Some scientists think that this is a somewhat
rare phenomena, and that though a planet may “start out” as a Rogue Planet, they’ll eventually
end up by a star that is able to grab it in its gravity pull. Others though think that not only is this
NOT a rare thing, but they feel that there could potentially be more Rogue Planets in
the Milky Way Galaxy that there are stars in it. For the record, it’s estimated that the Milky
Way (as of 2019) has about 200-400 billion stars. So if there are as many or more Rogue Planets? That’s a lot of mass flying around in space
untethered. But how can there be so many Rogue Planets? Well, not unlike the formation of other planets…it
all has to do with the art of creation. Before we dive into what makes these Rogue
Planets, be sure to like the video and subscribe to the channel. That way you don’t miss any of our weekly
videos! As you hopefully know, there are two distinct
types of planets in the universe. Solid, and gaseous. Earth is a good example of a solid planet,
and Jupiter is an example of a gas planet. These planets formed via millions of years
of gravity, compression, and certain other things that led to them being the planets
we know now. And Rogue Planets formed very much the same
way. After all, when the Big Bang happened, clouds
of gasses were poured all over space, and it’s believed that the gravity of the galaxy
sometimes formed these small gas giants into planets without them being tied to another
star. To be clear, they are planets and not stars
despite forming in similar ways. These planets are even referred to as “Sub-Brown
Dwarfs”, a reference to Brown Dwarf Stars, the smallest kinds of stars that technically
aren’t stars themselves despite acting like them at times. But with Sub-Brown Dwarfs, they don’t even
show the kind of things that make them act like stars, so they just drift through space
as a ball of gas. As for the solid/rocky Rogue Planets, they
have a different path to becoming adrift. You see, these Rogue Planets were very much
like Earth or Mars or even Pluto (still a planet…). They were once locked in with a star, but
then somehow, someway, they were “kicked out” of their system and became a Rogue Planet. I know that might sound like something from
science fiction, but it’s not as rare as you might think. First off, in the earliest days of the solar
system, it’s possible that these stars and planets didn’t have the stability that many
systems have now. Shifting gravities, orbits that put one another
closer than they should, and more could’ve forced one planet to be kicked out. The other option is that a collision or invasion
of something into the system shook thing up in a way that could’ve allowed a planet or
two to be kicked out. Not unlike what could happen to say Pluto
if a large Rogue Planet got caught in our suns gravity at the outer edges of the system. Finally, a paradigm shift in the status quo
of a system could’ve expelled some outer planets as it happened, like if a star suddenly went
Supernova, its shockwave could’ve been strong enough to blast a planet out of its orbit
without destroying it. There are many ways this could’ve happened,
but the results remain the same, the Rogue Planet was born. Alright, so, let’s get to the elephant in
the room, the question that virtually everyone asks about planets in general, but now you
want to know if it’s even possible in these circumstances. Mainly…
…is there even a chance that there life on a Rogue Planet? In short, the answer is yes. There is a chance that life could be on a
Rogue Planet, especially if it came from a situation where it was part of a solar system
for a period of time before being ejected into the unknowns of space. After all, many believe that there is life
out there, it just needs the right conditions, so taking random chance and probability into
account, it’s entirely plausible that life could indeed exist on a Rogue Planet…for
a time at least. Think about our Earth for a second. The reason we’re able to exist is due in large
part to our sun. The sun that provides us warmth, gives us
light, and so much more. A Rogue Planet wouldn’t have that at all. In fact, the only light and warmth that it
would get would be from the galactic core, which obviously wouldn’t be much. Based on estimates, the average temperature
for a Rogue Planet drifting through galactic space would be about -270 degrees Celsius,
which would mean that it would be unbearable cold. All surface life would likely die. If there are oceans, they would be frozen
solid. The surface itself would be frozen almost
to its core. It would need something like a hydrogen-rich
atmosphere if it were to last for a long time without a sun, and even then it would have
limits. Plus, if the worst case scenario were to happen
and the planet were to go into intergalactic space (the literal space between galaxies),
the heat would plummet to just a few degrees above Absolute Zero, and the light would literally
be nothing. So how could anything survive on such a world
without light or heat? Well, you’re think about this as if aliens
or human-like beings were on these planets and are still on them now. Not unlike our own world though, you need
to think smaller at times. In this case, we’re talking about oceans. If a Rogue Planet had oceans, and those oceans
were deep enough, they could have something very similar to what we have on Earth…hydrothermal
vents. Basically, these vents are entities that sprout
out of the Earth itself and into the oceans to dump out heat from the core of the planet. We have these on our planet in several forms,
and there is indeed microscopic life that do a very of photosynthesis because of these
vents and their heat. “But wait”, you say, “I thought you said that
most Rogue Planets would have frozen oceans?” And I did, but like I said, if the oceans
were deep enough like our own oceans, the freezing would only go down a certain depth. Our own ocean goes over 36,000 feet in terms
of depth, that’s more than Mount Everest! So if our world was to suddenly go into the
deep freeze, the oceans’ surface and immediate layers would freeze over, but not the deepest
depths where these vents are done. Or at least, they wouldn’t at first. Because of the potential life that these vents
could give, and the time needed for evolution to take place, it’s possible that certain
Rogue Planets are filled with various forms of oceanic life that is more than fine in
the cold temperatures of the water. Not unlike how there are creatures living
in the Mariana Trench despite its intense pressure, and how if you bring one of those
creatures up to the surface, it’ll die because it wasn’t ready for that shift in its lifestyle. Granted, not all life lasts forever, and it’s
possible that the planet would eventually become uninhabitable for even the most resilient
of deep sea species. But the point here is…it’s possible. And since Rogue Planets do fly through the
universe, it’s technically possible that a planet with life may have flown by us…and
we’ve never even noticed. Thanks for watching everyone! What do you think about these Rogue Planets
and the lives that they live? Do you think we’ll ever get to see a Rogue
Planet near our own solar system? What do you think about the possibility of
one of them having life on it? Let me know in the comments below, be sure
to subscribe, and I’ll see you next time on the channel!


  • molly hill says:

    i wish i could look through a telescope for planets it’s my dream to be on another planet

  • Lina Umpierre says:

    Unfortunately, most rogue planets are condemned to be crashed with others!

  • wdd3141 says:

    I understand that life forms exist in Earth underground at depths as great as a few miles. It would be possible for such life to exist inside rogue planets. Their chances of survival would be even greater if the planet had a hot core, as does Earth.

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