If that moon or other planet over the horizon isn't part of the plot line, I give it a thumbs down.

The gravity of the visible planet and the earth like planet the characters are on would be on a collision course. I suspect the environment and the characters should already be rising or at least be feeling the effects of the planet over the horizon.

That, on its own, would be a bigger story line than whatever is going on in the clip.

If Neil deGrasse Tyson was dead, he'd be rolling over in his grave.

https://www.youtube.com/watch?v=L051v3NC0F4

Devil's advocate:

First up, If we're looking for "something we can't imagine", by definition we are unable to search for it.

Second, there's every possibility that aliens ARE very similar to us. There's a principle known as the Mediocrity Principle that states that if you pick a thing at random from a set, it's more likely to common than unusual. In this case, we are picking from the (hypothetical) set of life-sustaining planets, and using the only example we're aware of: Earth.

It's not unreasonable to assume that Earth is typical of life-sustaining planets. There doesn't appear to be anything particularly special about it.... it's a rocky planet in the "Goldilocks zone" where water is liquid. We've found plenty of those.

So there's actually a good possibility that life on other planets could face the same evolutionary pressures and arrive at the same solutions.

Aliens might not be that different at all.

Ok, so water bears didn't seed earth, but could we use them to seed other planets with life?

I was thinking more people would have been floating up from the gravity of the other planet or whatever it was. Need to get Neil deGrasse Tyson on this one.

My concern is this : Imagine a global extinction event , lets say a repeat of the event that killed off the dinosaurs : a massive asteroid direct hit , instantly killing everything on roughly the same continent or general planetside , such an impact would punch a hole in the very tectonic plate it lands on and cause massive waves not just in water , but in the ground itself , waves of rock and earth surface taveling around the globe meeting on the far side of the impact and ricocheting back again . We are talking GLOBAL earthquakes off the scales, for YEARS after the impact as the tectonic plates are slowliy settling in, all this is followed by a thick cloud of ash from the impact, refueled by frequent vulcanic eruptions , this will block out most sunlight , so after the initial toasting , the few lucky survives of this pandemonium can look forward to hundreds of years of atomic winter. Sounds pretty fuckin bad.

But guess what : thats still better conditions for life than Mars. And Mars is goddamn paradise compared to the other planets around us. Anything outside our immediate neighbourhood ? Forget it , they are ATLEAST thousands of years travel away, making moving anything of note there unfeasable. We ARE a one planet species. Get used to it , take good care of this one , its all we got.

Now, my French is very rusty, but "dirigeants d'autres planetes" sounds very much like leaders of other planets...

If that's the case, I need some of whatever Jean-Claude Juncker was smoking:
https://www.youtube.com/watch?v=QM-KVAXY7Gs

Pollute the water and then sell the clean stuff in bottles. Why not the air we breath as well? In Spaceballs (1987) they stole other planets air, and enjoyed a nice can of Perri-air. A company called Vitality Air sells cans of Canadian air to China. Next we'll be taking the Coke vs. Pepsi air challenge. Which brand has that real healthy air flavor? Now comes in bacon, cotton candy and Grandma's house scents.

I don't know about the "40% gravity" fail either, considering every film in history that has humans walking around on other planets would fail that one too.
Can we have a curve?

Most of us have came to this conclusion when we realized I couldn't spot the other planets when we looked up in the sky at night. Only a troglodyte would assume that the popular solar system depictions are up to scale. The one thing that stuck with me as a child is when I was told that there are billions of suns in our sky. We just call them stars. That blew my mind.

Cool video nonetheless.

As a side note, I noted in the comments:
Heck people don't get the scale between the Earth and the Moon. The distance is so great that all the other planets of our solar system could fit in between the Earth and the Moon, while at aphelion anyhow, and have a bit of room to spare. If you arrange the planets pole to pole, then you can do it during the average distance of the moon's orbit. You can't pull the trick off while in perigee though as it gets about 27 kilometers too close, though this sort of shows the scale of the orbital eccentricity.

It would be fascinating stuff, but it can't be true right? Lord Jesus Christ is responsible for in 7 days creating all of the hundreds of billions of galaxies in the universe and all life on earth and on other planets we'll never know about, so these things couldn't have been alive a million years ago. Pure propaganda by all those atheist liars, a.k.a., scientists.

No. Not everyone thinks like a theist.

I have no idea whether life exists on other planets or not. I can theorise about the probability of it, but that's as far as I'm willing to commit.

As for the nonsense "roll a seven on a six sided die" argument... I really don't know if you're trolling or just genuinely have no understanding of logic, math, probability, statistics, etc.

Here's a hint: in order to create life, you don't need a seven. If you did you wouldn't be reading this. We exist, therefore by definition life in the universe is possible.

Now, I'm perfectly willing to grant that it might be extraordinarily improbable. The video tells us that the latest evidence is that there are around 20,000,000,000 sun size stars and probably about 4,000,000,000 earth like planets. Now, the video gives the odds of life on each one at 0.1% (and then somehow comes up with 1 million instead of 4 million, but I digress).

So we have 4 billion planets that might possibly have earth like life. But let's say that abiogenesis is really, really improbable. In fact, let's say, it's 1 in 4 billion. We've been testing out the various abiogenesis theories for a while now, but I doubt we've conducted anything like 4 billion separate experiments, so it's really no surprise that we haven't observed it.

But it might be even more unlikely. Maybe it's 1 in 400 billion! Seems pretty unlikely, but let's roll with it. There are still 200 billion galaxies out there. Even if only 1% of them are like the milky way that's still 8 billion billion potential life bearing planets. I don't think it's a stretch to say that some of them could have life.

You don't need a seven, but maybe you do need an edge, or a corner!

Do you understand the difference between what I think is probable based on observed facts and "taking something on faith"?

And as for god? Well, we know for certain that life exists, so it's not unreasonable to assume it might exist elsewhere. But we have zero empirical evidence for god. None, zip, zilch, nada. Does that mean god definitely doesn't exist? No, I can't prove that. Is it probable that god exists? No, it would violate everything we know about the universe. That doesn't mean we're not wrong, but you'd think that something as powerful as a literally omnipotent entity would leave some evidence of it's existence.

As Dawkins said when asked what he would say if he died and met god, "why did you go to such trouble to hide yourself?"

Since we won't be terraforming planets this century, if ever. I say colonize the moon first.

We have to bring nearly everything with us anyway, air, water, food, building supplies, etc. The moon is closer, so incredibly cheaper to ship to. Also, it's possible to send a rescue mission or send up unexpectedly needed equipment, not so on other planets.

Cloud cities ignore the insurmountable problem all Mars colony ideas have ignored, radiation. As far as I know, Venus is like Mars and has no magnetosphere, meaning little to nothing to protect from solar radiation. Being above the atmosphere, or on Mars without one, makes it worse. On the moon, you could expect underground colonies and few surface excursions, and the rock could provide the protection and seal in atmosphere. That could also be done on Mars....but why?
Also, as I understand it, they have found water on the moon, so one less thing to ship to space (although there's all the water we need already flying around Saturn if we can harvest the rings).

If they're really thinking 'cloud cities', why isn't anyone making them on earth? It would be like making more of the one thing no one has manufactured yet, more 'land'. The same could be said for underground colonies. Come on, science, get to it!

Understand, for people who have faith, faith is knowing the unknowable.

Example: I know that intelligent life exists on other planets. It is a 100% certainty in my mind. I am so certain of this "fact" in fact, that I think it's ridiculous that there are people who even question it. Yet, there is no actual scientific proof. Nothing published. Nothing discovered. I believe it though. I know it to be true. If someone were to tell me I shouldn't believe or talk about it, I would find it nonsensical and offensive. This is what faith feels like.

There's a difference between passively not believing in God and actively hating people who do.

If someone offers some bullshit as fact, and you know it isn't, welcome to every day on earth (or at least the internet). It doesn't matter if it's religion or not.

For example: (paraphrasing) 'Most people proselytize'.

Most of the (almost 6 Billion) people who believe in God go through their day to day lives without ever even mentioning their beliefs let alone trying to proselytize when they do.

And on that note I will say that proselytizing is not necessarily wrong either. You believe what you believe and they believe what they believe and everyone gets to express themselves (all proselytizing) and everyone can make up their own minds. Now, I'm talking about people expressing themselves, not entities who have an agenda.

Which brings me to my last point. None of this is to suggest that I disagree with Bil Nye. Kids should not be fed bullshit. Adults either. The real problem? It's not "money is the root of all evil". It's "the love of money". Greed is behind the majority of evil.

There are those who desire positions of power and pervert religion into a tool to achieve their own agenda. This is a very old story. And it is these people who "take God's name in vain". But that's just one hammer in their toolbag. Religion is one. Anti-intellectualism another. Manipulation through fear. On and on.

Science is truth but it is not the only "truth" in life. Art exists. Beauty exists. Love exists. There is more. Maybe all of that can be boiled down to some chemical reactions in the brain and sociological pressures, but I believe there is a greater truth.

Sorry for ranting. Don't take any of this personally please!

it's been a really bad week for my back and lots of meds have been needed, which impairs my math skills. My mistake there...and I've retracted that....and I apologize.

It's no problem. It's completely understandable for what you're going through over there. I'll say a prayer for you and your family. Hopefully some pain free days are coming your way soon.

Doing the math correctly, I see you ARE right that it's about 400 times the distance.
But they (and so you) are wrong that it's 400 times the "size". You are right that the radiuses/diameters are a ratio of 400-1. That's different from size, even 2d size.
It may seem semantical, but to me it's an important distinction. This is what I took issue with mostly, since I was CERTAIN the actual "size" (in 3D) is no where near a ratio of 400-1, but closer to 64 million -1. Even in 2D it's nothing like 400-1.

Point taken..you were just trying to be accurate in the way the terms were defined.

Also, I'm not intentionally ignoring your point, it is an interesting fact that the ratios are close, but only coincidental IMO, certainly not 'proof' of anything supernatural.
EDIT: even if they were a perfect ratio, it would only suggest a physical law of motion we don't know or fully understand yet.
I would be interested to see a list of other planets and their moons to see if any other planet/moon (or combination of moons) in our solar system shows the same ratios. Neither answer would make me think anything supernatural however, it's just not that kind of question in my eyes.

Taken by itself, it is an extraordinary coincidence if you deem it as such. Yet, when you pile on the many other factors that have to line up for us to have life here, I find coincidence isn't the appropiate word. Now, some say that because it is such a huge Universe, there are bound to be planets like these (which isn't proven, btw)..and we shouldn't be surprised to find ourselves on one of them because we would expect to find conditions which allow for our existence, given that we exist. I don't think that is a persausive argument.

There is a good analogy about this that I borrowed from the net:

"Suppose you are to be executed by a firing squad of 100 trained marksmen, all of them aiming rifles at your heart. You are blindfolded; the command is given; you hear the deafening roar of the rifles. And you observe that you are still alive. The 100 marksmen missed!"

Taking off the blindfold, you do not observe that you are dead. No surprise there: you could not observe that you are dead. Nonetheless, you should be astonished to observe that you are alive. The entire firing squad missed you altogether! Surprise at that extremely improbable fact is wholly justified - and that calls for an explanation. You would immediately suspect that they missed you on purpose, by design."