00:00Imagine a planet like Earth, but much heavier.
00:03We know that gravity is getting stronger as the mass increases.
00:06That's why giants like Jupiter in our solar system have a super-powerful gravity.
00:11Jupiter's gravity is about 25 meters per square second,
00:16which is 2.4 times higher than Earth's.
00:19It is so powerful that Jupiter attracts hundreds of asteroids towards it,
00:24which, without Jupiter's presence, would have fallen directly on Earth.
00:28However, Jupiter is a gas giant,
00:31which means it does not have a solid surface like Earth.
00:34It is literally a gas ball in the wind,
00:37with a dense core somewhere deep inside.
00:40If you tried to stand on Jupiter, you would sink until you reached it.
00:45But what would happen if we stood on a planet similar to Earth with very strong gravity?
00:51First of all, it would be much larger than our Earth, and also massive.
00:55It's a big problem, because it would affect its size and the way it loses heat.
01:00Think about it like this.
01:02As things get bigger, they lose heat more slowly,
01:06like a large pot of soup simmering on the stove.
01:08Now, I'm hungry.
01:10That means the surface there will be quite warm.
01:13You can imagine a desert or savannah planet.
01:17The landscape would be different in general.
01:19You would have shorter mountains and shallow oceans,
01:22and the planet would be flat as a whole.
01:24High gravity would melt the interior,
01:27causing a lot of geological activity and making the surface even flatter.
01:32The air on this massive planet would be extremely dense,
01:34because a stronger force would pull it down.
01:37Breathing would be like inhaling soup, as strange as it may seem.
01:41In addition, the winds and waves would be less wild and powerful.
01:45And as for flying, well, it would be difficult on planets with strong gravity.
01:50If we land our spaceship on it,
01:52it will be a real headache to leave later.
01:56On the positive side, due to the thickness of the air,
01:59the sky would have magnificent colors.
02:01Sunset and sunrise would be breathtaking.
02:04And when it comes to volcanoes,
02:06they would remain silent until the pressure reaches epic levels.
02:10This means that volcanic eruptions would be rare,
02:13but crazy when they occur.
02:15After landing, of course, you would feel an incredible heaviness.
02:20You would feel like you're being crushed down.
02:23Each step would be a physical exercise,
02:25and even lifting objects would be a challenge.
02:28And forget about jumping high or doing sophisticated acrobatics.
02:32On this planet, your jumps would be barely noticeable.
02:35Even breathing would be difficult for us.
02:38So, if we wanted to live there,
02:40we would have to adapt all our sports and games significantly.
02:43And climbing one of these little mountains
02:45would look like climbing an endless staircase.
02:48Buildings should be short and sturdy as well,
02:51like small trapdoors.
02:53High structures could easily collapse under the weight of gravity.
02:57And on a planet like this,
02:59even a small fall could be disastrous.
03:02So, the inhabitants would mainly be four-legged, sturdy creatures,
03:07ensuring their stability and proximity to the ground.
03:11Thus, the creatures living here should be sturdy.
03:14The best example is the Elkhorn of Mass Effect.
03:17It's a species from the high-gravity world of Ekuna.
03:20As far as walking is concerned,
03:22these creatures should choose between stability and energy saving.
03:27Less legs would be ideal to save energy.
03:31In this case, they would move like a swinging pendulum.
03:35But they wouldn't be very stable.
03:37More legs would have the opposite effect.
03:39These people would also need robust lungs to breathe,
03:42powerful hearts to pump blood against gravity,
03:45and super dense bones.
03:47Their veins could even have muscles like our arteries.
03:51And with so much oxygen around due to the thick atmosphere,
03:54these creatures could become really big.
03:57In other words, if we lived on such a planet,
04:00we would all look like bodybuilders.
04:02The good news is that with all the additional effort,
04:05you could enjoy more tasty food.
04:08You would need additional calories to follow the new lifestyle.
04:13This is what life on a planet with high gravity would look like.
04:17Now, what about the opposite,
04:19a planet with very low gravity?
04:21Instead of feeling anchored and heavy,
04:23you would feel remarkably light and floating.
04:26To get an idea of what a low gravity could be,
04:30think of the feeling of jumping on a trampoline.
04:33When you jump in the air,
04:35you feel a brief moment of weightlessness
04:37before gravity brings you back to the ground.
04:40Now, imagine that this feeling of weightlessness
04:43never really disappears.
04:46You would feel incredibly agile.
04:48Each step would be a bit like walking on the moon,
04:51where you can make huge jumps with little effort.
04:54One of the biggest differences on such a planet
04:57would be the climate and temperatures.
04:59Unlike the previous one,
05:01this lighter world could not be as effective in retaining heat.
05:05This could be translated by softer and more stable temperatures
05:09compared to the Earth.
05:10Imagine a world where each day looks like a pleasant spring day.
05:15Seasons could still exist,
05:17but the extremes of scorching summers and icy winters
05:20would be much less pronounced.
05:22Thus, outdoor activities would be a pleasure throughout the year.
05:26The landscape on a planet with low gravity
05:28would be breathtaking.
05:30The mountains would rise to dizzying heights,
05:33their peaks seeming to touch the sky.
05:35These majestic geological formations
05:37could exceed the layers of clouds.
05:39The valleys and canyons would be deep and extensive.
05:43Breathing there would be a child's play, literally.
05:47With a finer atmosphere,
05:48you would find it much easier to breathe.
05:51The winds would be much softer than on our planet.
05:54Storms would still occur,
05:56but they would look nothing like the ones we have on Earth.
06:00Life on a planet with low gravity would also be different.
06:04Plants could grow large and elongated,
06:06reaching the sky.
06:08Trees could stretch to incredible heights.
06:11Animals would be large and graceful,
06:14with long limbs and elongated bodies.
06:16They would move with elegance.
06:19Wings could be a common feature among them.
06:22They could also have developed specialized adaptations,
06:26like gas-filled bags.
06:28If we were born on a planet like this,
06:31we would also be large,
06:32thin,
06:33with fragile bones and very thin muscles,
06:36like this boy stretched in Charlie and the Chocolate Factory.
06:40As you can guess,
06:41this planet could be a paradise for sports enthusiasts.
06:44Traditional games like basketball, football and volleyball
06:48could become incredibly popular here,
06:51and much more fun.
06:52People would be able to jump very high,
06:55to do dangerous jumps in the air,
06:57and all kinds of cool moves.
07:00And activities like hiking, climbing and even yoga
07:03would take on new dimensions.
07:05Doing acrobatics would be as natural as walking.
07:08And all the difficult daily tasks
07:10that require lifting and carrying would be effortless.
07:14Architects and engineers would be happy
07:17to design buildings in this world.
07:19They would be able to build very high and elegant structures
07:23reaching the horizon.
07:25Our cities would be filled with immense skyscrapers
07:28and large windows.
07:29Flying and taking off from the surface would be much easier.
07:33On Earth, launching a spaceship into orbit
07:35requires a huge amount of energy.
07:38But on a planet with low gravity,
07:40escaping the atmosphere would be much less demanding,
07:43which means that humans could travel more,
07:46and exploring space would be much easier and less expensive.
07:50Of course, all this means that transport
07:52would also benefit from low gravity.
07:55Traveling by plane would be incredibly efficient.
07:58With planes flying effortlessly in the thin atmosphere,
08:01elevators in high-rise buildings
08:04would operate with minimal energy consumption.
08:07And in general,
08:08given that the planet is probably smaller than Earth,
08:11travel would be much faster.
08:14However, there could be challenges,
08:16such as fragile bodies and health problems.
08:19In addition, we would probably get tired faster
08:22due to all the muscle atrophy and other factors.
08:26And maybe the ecosystem wouldn't be as diversified as Earth's.
08:30But still, it seems that living on a planet with low gravity
08:34is much better than on a planet with high gravity.
08:37In addition, it seems that it could even be better than Earth.
08:41So maybe one day,
08:42we will find a planet that will be like a paradise for humans.
08:46In the meantime, let's take care of our beautiful Earth.
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