上位 200 件のコメント全て表示する 309

[–]Jmcur [スコア非表示]  (53子コメント)

I love these comparison images, really helps my mind understand the scale of these amazing things. Anyone have more comparison images (not necessarily Pluto but any of the planets compared to continents or cities?

[–]Gemini00 [スコア非表示]  (34子コメント)

There's this image comparing Comet 67P (the Rosetta comet) to downtown Los Angeles, if you haven't seen it already.

[–]igopherit [スコア非表示]  (10子コメント)

That looks like it will hurt like hell if it hit

[–]Ahgu9eSe [スコア非表示]  (8子コメント)

Probably ending life on earth.

Source : http://science.howstuffworks.com/nature/natural-disasters/asteroid-hits-earth.htm

1+ mile asteroid is likely to wipe out life of earth

[–]IoncehadafourLbPoop [スコア非表示]  (3子コメント)

All life? What about bugs and microorganisms?

[–]iushciuweiush [スコア非表示]  (1子コメント)

Possibly. I can't find any sources that speculate on such a thing because it's never expected to happen but something pluto sized could potentially vaporize everything on the surface of the earth.

[–]geosmin [スコア非表示]  (1子コメント)

I don't remember the specifics, but that image was debunked as being horribly inaccurate - as in orders of magnitude inaccurate.

[–]Cheesemacher [スコア非表示]  (0子コメント)

First time I'm hearing this. You mean the comet is too big or too small in the picture?

[–]Doge_Kitty [スコア非表示]  (0子コメント)

But it can be misleading sometimes. The surface area of Pluto is bigger than Australia because of its spherical shape.

[–]DojiDoj [スコア非表示]  (0子コメント)

Here is a comparison of Earth to our lovely planet.

[–]kimchifart [スコア非表示]  (0子コメント)

Yup this image also reminds me of the iron man book, as a bonus.

[–]CRFyou [スコア非表示]  (59子コメント)

I now understand why Pluto got its planet designation reduced to dwarf.

If it was in a habitable zone, there's barely enough room for kangaroos and dingos.

[–]JehovahsNutsack [スコア非表示]  (14子コメント)

Well actually surface area, it's almost the same size as Russia.

[–]dittbub [スコア非表示]  (24子コメント)

Are you saying Pluto is the Australia of planets??

[–]CRFyou [スコア非表示]  (12子コメント)

I'm saying if I was the King, I'd send all my prisoners there for sure.

[–]jacobthehunter [スコア非表示]  (8子コメント)

And THAT is how you get space-rebels in 30 years.

[–]Booblicle [スコア非表示]  (2子コメント)

It's ok. Out in space. Nobody can hear you complain - when you run out of food.

[–]CRFyou [スコア非表示]  (1子コメント)

You just eat space-dingos and space-'roos.

Melt down some space-ice and convert it to space-water.

You can live a pretty long space-life there...

[–]TedTheViking [スコア非表示]  (0子コメント)

It's a shame about their wacky space-politics, though.

[–]Sam474 [スコア非表示]  (0子コメント)

Well if we're going by history they'll be lazy but good looking space rebels who just surf and cuss and don't really bother anybody else.

[–]oldmanpooslice [スコア非表示]  (0子コメント)

And they would make excellent beer. And all be super fucking handsome and good with the ladies and shit.

[–]amphoe [スコア非表示]  (4子コメント)

There are far more reasons why Pluto is no longer considered a planet

[–]shlam16 [スコア非表示]  (4子コメント)

I love this picture. I've been trying to explain how minuscule Pluto is for years, but this really highlights it.

[–]CRFyou [スコア非表示]  (2子コメント)

It really takes photos like these for me to get it.

Imagine the the micro gravity if we could run around on it!

We'd be supermen!

[–]ccooffee [スコア非表示]  (0子コメント)

And it makes you realize while the previous Pluto photos were such low quality.

[–]threkar [スコア非表示]  (0子コメント)

My takeaway from this is that we need to reduce Australia to a dwarf continent

[–]fuckingbrilliant [スコア非表示]  (0子コメント)

Naturally, Australia should be downgraded to dwarf continent.

[–]FreeSpeechBastion [スコア非表示]  (0子コメント)

Keep in mind that you would have to unwrap the sphere and flatten it to get a real comparison. It would actually be quite a bit bigger than Australia.

[–]Xet [スコア非表示]  (20子コメント)

Incidentally, if Pluto were to just suddenly 'appear' resting on the planet's surface like this, with an initial velocity of 0, what would happen?

I can't imagine it would remain chilling there as a sphere for very long. Would it just instantly collapse, or would it start sinking into the earth? Perhaps a bit of both?

[–]Vatnos [スコア非表示]  (2子コメント)

I think it would sink into earth, but due to its sheer mass the first half of the sinking would happen quickly as if it were falling from space at terminal velocity, with the rock+ice being crushed nearly instantly and converted into heat. That explosion would convert Earth's entire crust into magma, boil the oceans into the atmosphere, and destroy 99.999% of all life on Earth.

The power from the explosion would be strong enough to fling some material from the earth's crust into space that would accrete to form a second, smaller moon.

A tiny percentage of bacteria would still survive and evolution would start over on the planet from there. It wouldn't even take that long in geological terms for the planet to cool off and resume as if nothing had happened.

[–]FamBot [スコア非表示]  (1子コメント)

I don't know for sure but I imagine it would involve a lot of sinking, crushing, crumbling and melting.

I imagine that amount of mass added to earth in one spot would cause some severe instability with the earth's rotation causing a wobble affect which might cause the earth orbit to change significantly. Either throwing us further in to space and thusly to a freezing death or cause us to get even closer to the sun.

The change in orbit could be so abrupt that it causes the moon's orbit to change drastically. Either completely flinging the moon away or causing the moon to whip outward only to be drawn back to earth much more violently possibly colliding with the earth (again) or creating a very oblong orbit in which the moon gets closer and further away as it orbits.

But again I don't know. These are just my guesses.

[–]tfburns[S] [スコア非表示]  (5子コメント)

You'd have to compare the density of Pluto with that of the average surface of Earth's (if we assume it is hovering over a surface like Australia). As there's a lot of ice on Pluto, its density would likely be much less than Earth's surface, and so I'd imagine the impact of it on Australia (for example) would be less catastrophic than if its whole mass was rocky.

Assuming you just magicked Pluto above Australia like in the picture, I'd predict that the ice would crack and crumble down over the hot continent, with the fine ice particles melting and the large shards wreaking havoc. The rocky core might form a new Uluru, but I don't think many people would be able to see it in a great hurry as there would be earthquakes and volcano eruptions (caused by the impact) and flooding (caused by the melting ice), not to mention the crushing and destruction of a large part (or all?) of Australia. Gee ... I really wish this image was of another continent now as I'm Australian!

P.S. All of this is mere speculation, I'm not a physicist.

[–]dittbub [スコア非表示]  (2子コメント)

If Pluto was gently set onto Australia... would you end up with a giant mountain? Or would the destruction be so volatile it would spread matter all over the Earth?

[–]tfburns[S] [スコア非表示]  (1子コメント)

I would imagine it like two balls of that plastic putty stuff kids play with, only with a crustier outside and a more liquid inside. You would end up with extra mass where Australia is, certainly, but the sheer impact would, I think, crack the Australian tectonic plate and probably this would ricochet to other plates which would also crack. I can imagine the modelling to figure out what it would all look like afterwards would be rather intensive/specialised. Perhaps a new plate - the Plutonic tectonic plate - would form at the site of impact, after all the lower layers settle.

[–]sprucenoose [スコア非表示]  (3子コメント)

It would crash into Earth at a relatively low velocity, but would certainly distort the very composition of the planet, eject a lot of matter into space, almost instantly wipe out all life on Earth and possibly for all time.

[–]Jahkral [スコア非表示]  (2子コメント)

What, no it wouldn't. It can't crash into earth if its already sitting on the surface! It would sink to a degree and there would be a buttload of volcanism and then a lot of stuff would slowly die over time. It would probably take thousands of years if not longer for pluto to really fuse with earth.

I think the more notable effects would be the sudden change in center of gravity, rotational dynamics etc. New wind patterns and day lengths will probably kill a lot more life than the incredibly slow fusion of the planets.

[–]sprucenoose [スコア非表示]  (1子コメント)

It would not be "sitting" on the surface. What keeps the planets together is their gravity. Here, there would be two massive gravitational points pulling towards each other, and the enter of gravity would be somewhere in between, towards which they would both be pulled. Both bodies would be torn apart as they accelerated toward it, but Pluto, being the smaller body, even more so. It would just, essentially, fall apart and crash into the distorted Earth to create one large planet.

[–]Jahkral [スコア非表示]  (0子コメント)

It would START on the surface. Obviously there is a pull of the centers to eachother, but it would not just suddenly start hurtling. We're talking about thousands of kilometer of extremely dense rock. The compression would be slow (there would be a notable immediate compression as the weaker overlying layers crush, but I don't want to speculate on the global impact of that) by human standards.

[–]if_ewe_only_gnu [スコア非表示]  (9子コメント)

Why is nobody concerned about the casualties from this disaster? Seems like it would be devastating.

[–]tfburns[S] [スコア非表示]  (0子コメント)

P.S. Full credit to David Murray, who created this image. I would have linked to the imgur page with the credit info but it's against the sub rules, i.e. mods request that submissions are directly to an image (which is understandable).

[–]socki03 [スコア非表示]  (0子コメント)

One of them is a harsh, desolate place where the climate would kill you in under a minute, and the other one's Pluto.

[–]nivenfan [スコア非表示]  (0子コメント)

I'd like to see Australia wrapped around a blank Pluto so that we could get a more accurate sense of scale. This feels like a comparison between a globe and a Mercator projection. It's kind of helpful, but still misleading.

[–]mao_intheshower [スコア非表示]  (0子コメント)

Somehow, Australia vs Pluto sounds a lot less menacing than Pluto vs Australia.

[–]EdwardMurderKnuckles [スコア非表示]  (0子コメント)

I don't think this comparison is really fair. One is a barren wasteland completely devoid of intelligent life and the other is Pluto. Apples and pears.

[–]cruzin_basterd [スコア非表示]  (8子コメント)

Is that accurate? I thought Pluto was only slightly smaller than Russia?

[–]LurkerInSpace [スコア非表示]  (7子コメント)

It has a slightly smaller surface area than Russia, but its diameter is a lot smaller than the length of Russia.

[–]cruzin_basterd [スコア非表示]  (6子コメント)

Damn, good point. I'm an idiot and forgot to take into account the 3D aspect of Pluto. Thanks for reminding me of geometry.

[–]ScoobiusMaximus [スコア非表示]  (1子コメント)

One of these is a lifeless hellhole where the environment will kill you instantly. The other is a dwarf planet.

[–]RelientB [スコア非表示]  (8子コメント)

So, is it possible that the lack of craters could be due to the fact that Pluto is easily missed by space debris?

[–]ryandinho14 [スコア非表示]  (3子コメント)

The moon still has craters.

[–]A_Jellyfish [スコア非表示]  (0子コメント)

Yes although this is true the gravitational pull of the sun is much greater on the moon and any thing around it.

[–]ginsunuva [スコア非表示]  (0子コメント)

Moon is 7x more massive (kg) than Pluto.

[–]GennaroJ [スコア非表示]  (0子コメント)

Pluto's size (big for being a Kuiper belt object) is more than enough to attract other objects into collision.

[–]adude350 [スコア非表示]  (1子コメント)

Moon has craters, its about the same size.

[–]ginsunuva [スコア非表示]  (0子コメント)

Pluto has 1/7th the mass of the moon though.

[–]Dohboy632 [スコア非表示]  (2子コメント)

[–]WolframAlpha-Bot [スコア非表示]  (0子コメント)

Input interpretation

Russia | total area  |  Pluto | surface area

Results

Russia | total area | 1.708×10^7 km^2  (square kilometers)  (world rank: 1st)
Pluto | surface area | 1.7×10^7 km^2  (square kilometers)

Delete (comment author only) | About | Report a Bug | Created and maintained by /u/JakeLane

[–]Agent4nderson [スコア非表示]  (0子コメント)

So what you're saying is that we should send all of our criminals to Pluto?

[–]Voltrondemort [スコア非表示]  (0子コメント)

So one's a remote, uninhabitable barren spit of rock that would kill humans the moment they set foot on it outside of a space-suit, and the other is a dwarf planet in the Kuiper belt.

[–]newfoundslander [スコア非表示]  (0子コメント)

Humorously, in the picture Australia is 'down under'. And has more things likely to kill you.

[–]ccooffee [スコア非表示]  (2子コメント)

So I guess Australia should not be continent anymore. Now it's just a "large island".

[–]themangodess [スコア非表示]  (1子コメント)

Is there a version of this where Pluto is flat instead? It's hard for me to visualize it since it's a round object, but if it was a flat map of Pluto overlaid on top I'd probably visualize it better.

[–]peteroh9 [スコア非表示]  (0子コメント)

It's .4% larger than Russia so just look at Russia.

[–]candyhippie [スコア非表示]  (0子コメント)

So, is this 1:1 Pluto:Australia in terms of diameter:width? Or is Pluto (as the shadow implies), "resting" on Australia, lifting it above Australia and altering the apparent size, since Pluto's widest point is 1 Pluto-radius closer to the "viewer?" Or does it not make a difference at this scale?

[–]Glitterbritches [スコア非表示]  (0子コメント)

Aussie Man

Aussie Man

Doing things that an Aussie Can

Wrestling Gators, Staying Tan

Avoiding Spiders

Aussie Man


Aussie Man

Aussie Man

Aussie Man meets Pluto Man

They have a fight

Pluto wins

Pluto Man


Is he a dwarf

or a real planet

When he is in orbit does he hit the Oort

Or does the Oort hit him instead

nobody knows

Pluto man

[–]zareny [スコア非表示]  (0子コメント)

At least on Pluto, everything isn't trying to kill you like in Australia. And it doesn't have a Prime Minister that makes George W. Bush look like a genius.

[–]InfectedP0tato [スコア非表示]  (1子コメント)

Ones a completely barren landscape that if you set foot without any equipment, will die instantly and the temperatures are very intense. The other is an innocent dwarf planet named Pluto.

[–]leafjerky [スコア非表示]  (0子コメント)

But keep in mind that when it comes to total surface area, Australia only makes up ~45% to that of Pluto's. So that means Pluto has 55% more desolation than Australia.

[–]mantaslt [スコア非表示]  (2子コメント)

Someone do comparison between a continent and whole Pluto surface area.

[–]JuJustice [スコア非表示]  (0子コメント)

We should lasso that little fella and bring'em to chill with our moon.

[–]nooblygoobly [スコア非表示]  (0子コメント)

I would probably survive longer on Pluto than I would in Australia

[–]lolzwtf [スコア非表示]  (0子コメント)

Thank you for this! I finally understand just how small pluto really is.

[–]lesser_futhark [スコア非表示]  (0子コメント)

Pluto used to be a planet.

Australia was never a planet.

Pluto wins.

[–]bicameral2 [スコア非表示]  (0子コメント)

Wouldn't Pluto make a nice moon? I feel like moon hoarding should be our next goal in space.