00:00Imagine a planet like Earth, but way heavier.
00:03We know that gravity gets stronger as mass increases.
00:07That's why giants like Jupiter in our solar system have super-strong gravity.
00:12Jupiter's gravity is around 81 ft per second squared, which is 2.4 times higher than Earth's.
00:19It's so powerful that Jupiter attracts hundreds of asteroids to itself, which, without Jupiter's
00:24presence, would have fallen directly to Earth.
00:27However, Jupiter is a gas giant, which means it doesn't have a solid surface like Earth
00:33does.
00:34It's literally a ball of gases and winds with a dense core somewhere deep inside.
00:40If you tried to stand on Jupiter, you would sink until you reached it.
00:46But what would happen if we were standing on an Earth-like planet with a very strong
00:50gravity?
00:51First of all, it'd be a lot bigger than our Earth, and pretty massive as well.
00:56That's a big deal, because it would affect its size and how it loses heat.
01:00Think of it like this.
01:02As things get bigger, they lose heat more slowly, like a big pot of soup simmering on
01:07the stove.
01:08Now I'm hungry.
01:09This means that the surface there would be quite hot.
01:12You can imagine a desert or savannah planet.
01:16The landscape would be different in general.
01:19You'd have shorter mountains and shallow oceans.
01:22And the planet would be pretty flat overall.
01:24The heavy gravity would make the insides molten, causing lots of geological action
01:30and making the surface even flatter.
01:32The air on this hefty planet would be super thick, because there's a stronger force
01:37pulling it down.
01:38Breathing would feel like inhaling soup, however weird that sounds.
01:43Also, winds and waves would be wild and powerful.
01:47And as for flying around, well, it would be tough on high-gravity planets.
01:52Even if we land our spaceship on it, it would be quite a headache to leave later.
01:58On the bright side, because the air is thick, the sky would have stunning colors.
02:03The sunsets and sunrises would be breathtaking.
02:06And when it comes to volcanoes, they'd stay quiet until the pressure reaches epic levels.
02:12That means volcanic eruptions would be rare, but crazy when they happen.
02:17After landing, of course, you would feel an incredible heaviness.
02:21It would feel like you're being squished down.
02:24Every step would be a workout, and even lifting things would be a challenge.
02:29And forget about jumping high or doing fancy flips.
02:33On this planet, your jumps would barely exist.
02:36Even breathing itself would be tough for us.
02:39So if we wanted to live there, we'd have to adapt all our sports and games a lot.
02:45And climbing one of those short mountains would feel like climbing a never-ending staircase.
02:51The buildings would have to be short and sturdy as well, like squat little towers.
02:55Tall structures might easily collapse under the gravity's weight.
02:59And on a planet like that, even a little tumble could spell disaster.
03:04So the inhabitants would be mostly sturdy four-legged creatures, ensuring they stay
03:09steady and close to the ground.
03:13So any creatures living here would have to be built tough.
03:17The best example is the Elcor from Mass Effect.
03:20They're a species native to the high-gravity world Dakuna.
03:24When it comes to walking around, these creatures would have to choose between stability and
03:29saving energy.
03:30Fewer legs would be great for saving energy.
03:33In that case, they would move like a swinging pendulum.
03:37But they wouldn't be super stable.
03:39More legs have the opposite effects.
03:42These folks would also need beefy lungs to breathe, mighty hearts to pump blood against
03:47the gravity, and super-dense bones.
03:50Their veins might even have muscles, like our arteries.
03:53And with so much oxygen around because of the thick atmosphere, these creatures could
03:58grow really big.
04:00In other words, if we lived on such a planet, we would all look like bodybuilders.
04:05The good news is, with all the extra effort, you'd get to enjoy more tasty food.
04:10You'd need the extra calories to keep up with a new lifestyle.
04:14That's what it would be like to live on a high-gravity planet.
04:18Now what about the opposite, a planet with super-low gravity?
04:23Instead of feeling grounded and heavy, you'd feel noticeably light and buoyant.
04:27To get a sense of how low-gravity might feel, think about the sensation of jumping on a
04:33trampoline.
04:34When you leap into the air, you experience a brief moment of weightlessness before gravity
04:39pulls you back down.
04:41Now imagine if that feeling of weightlessness never really went away.
04:46You'd feel incredibly agile.
04:48Every step would be a bit like walking on the moon, where you can leap great distances
04:53with little effort.
04:54One of the biggest differences on such a planet would be the climate and temperatures.
04:59Unlike the previous one, this lighter world might not be as effective at trapping heat.
05:05This could result in milder and more stable temperatures compared to Earth.
05:09Picture a world where every day feels like a pleasant spring day.
05:14Winters might still exist, but the extremes of scorching summers and freezing winters
05:19would be much less pronounced.
05:21So outdoor activities would be a joy throughout the year.
05:25The landscape on a low-gravity planet would be a sight to behold.
05:29Mountains would rise to towering heights, their peaks seemingly brushing against the
05:34sky.
05:35These majestic landforms could reach far above the cloud layers.
05:39Valleys and canyons would be deep and sprawling.
05:45Breathing there would be a breeze, literally.
05:48With a thinner atmosphere, you'd find it much easier to inhale.
05:52Winds would be much gentler than on our planet.
05:55Storms would still occur, but they wouldn't be anything like what we have on Earth.
06:00Life on a low-gravity planet would be different as well.
06:03Plants could grow tall and slender, reaching for the skies.
06:07Trees might stretch to incredible heights.
06:11Animals would be tall and graceful, with long limbs and slender bodies.
06:14They'd move with elegance.
06:17Wings might be a common feature among them.
06:19They also could have developed specialized adaptations, like gas-filled sacks.
06:27If we were born on a planet like this, we would also be taller, slender, with quite
06:32fragile bones and very thin muscles.
06:35Like that stretched boy from Charlie and the Chocolate Factory.
06:39As you can guess, this planet could be a paradise for sports lovers.
06:44Traditional games like basketball, soccer, and volleyball could become incredibly popular
06:49here, and much more fun.
06:51People would be able to jump super high, do backflips in the air, and all sorts of cool
06:56moves.
06:57And activities like hiking, rock climbing, and even yoga would take on new dimensions.
07:03Learning acrobatics would be as natural as walking.
07:06And all the hard everyday tasks that require lifting and carrying would feel effortless.
07:14Architects and engineers would have a field day designing buildings in this world.
07:18They would be able to build very tall and elegant structures reaching the skyline.
07:23Our cities would be filled with towering skyscrapers and large windows.
07:28Flying and taking off the surface would be much easier.
07:31On Earth, launching a spacecraft into orbit requires a tremendous amount of energy.
07:37But on a low-gravity planet, escaping the atmosphere would be far less demanding.
07:42Which means that humans would be able to travel more, and exploring space would become much
07:48easier and cheaper.
07:50Of course, all that means that transportation would also benefit from the low gravity.
07:55Air travel would be incredibly efficient, with aircraft gliding effortlessly through
08:00the thin atmosphere.
08:02Elevators in tall planets would operate with minimal energy consumption.
08:06And in general, since the planet is probably smaller than Earth, traveling there would
08:11be much faster.
08:15There might be some challenges, though, like fragile bodies and health problems.
08:19Also, we would probably get tired faster because of all of the muscle atrophy and other things.
08:26And perhaps the ecosystem wouldn't be as diverse as it is on Earth.
08:30But still, it looks like living on a low-gravity planet is much better than on a high-gravity
08:36one.
08:37Moreover, it sounds like it might even be better than Earth.
08:40So maybe someday, we'll find a planet that will be like a paradise for humans.
08:46Until then, let's take care of our beautiful Earth!
Comments