/Space/ Thread?

[Anonymous No.7703234]

What's the least remarkable moon?

[Anonymous No.7703237]

Also, dumping.

[Anonymous No.7703238]

>>7703237

[Anonymous No.7703239]

>>7703238

[Anonymous No.7703242]

>>7703239
Just look at that sexy, sexy atmosphere.

[Anonymous No.7703244]

>>7703242

[Anonymous No.7703246]

>>7703244

[Anonymous No.7703249]

>>7703246

[Anonymous No.7703251]

>>7703249

[Anonymous No.7703256]

>>7703251

[Anonymous No.7703263]

>>7703256
Saw this in another thread a while back--
>If a large moon such as, say, Callisto or Titan, broke free of their planet's gravity and formed a new one which was clear of debris (such as in the void between planets) would it be classified as a planet or something along the lines of a 'rogue lunar body?'

Anybody know?

[Anonymous No.7703267]

>>7703263

[Anonymous No.7703271]

>>7703267

[Anonymous No.7703275]

>>7703271

[Anonymous No.7703277]

>>7703275
Since they have such a close proximity and similar size, are Pluto and Charon geologically active? Do their cores tug on each other enough to produce tidal heating?

[Anonymous No.7703280]

>>7703277
I mean, it doesn't look like there's many craters on either of their surfaces, unlike something such as, say, Dione or Umbriel.

[Anonymous No.7703283]

>>7703280

[Anonymous No.7703284]

>>7703283
>Umbriel

[Anonymous No.7703285]

>>7703284
Whoopsy daisy, didn't mean to copy that.

[Anonymous No.7703287]

>>7703285

[Anonymous No.7703288]

>>7703287

[Anonymous No.7703290]

>>7703288
Can you imagine? Being out in the open, suffocating void of Space, with nobody to talk to but yourself? Having to make a conscious effort to not go mad from the deafening silence of your surroundings?

Like this thread?

[Anonymous No.7703292]

>>7703290

[Anonymous No.7703298]

>>7703292
Ominous isn't it? How dark and lonely it must be out there, millions and millions of miles away, on a frozen little rock. Charon actually looks rather intimidating, rearing it's head out from the black nothingness.

[Anonymous No.7703301]

>>7703298

[Anonymous No.7703304]

>>7703301
Despite the file name, I know it's Phobos. Shame it's going to get destroyed in a little while.

[Anonymous No.7703305]

>>7703304

[Anonymous No.7703309]

>>7703305
The earth and moon in one picture together.

[Anonymous No.7703311]

>>7703309

[Anonymous No.7703314]

>>7703311
Shame there aren't more Anons on /sci/. But then again, if there were, this thread would probably be 404'd in five minutes.

[Anonymous No.7703318]

>>7703314

[Anonymous No.7703320]

>>7703318
And here we see a mosaic of Pluto in detail. Who knew Pluto would have such a surreal, dream-like landscape?

[Anonymous No.7703324]

>>7703320

[Anonymous No.7703325]

>>7703324
Here we see a scale image of our sun as a red giant compared to one the largest known stars, UY Scuti. Just imagine what will happen when it enters it's own Red Giant phase.

[Anonymous No.7703326]

>>7703325

[Anonymous No.7703330]

>>7703326
>Cloud cities on Venus
Huehuehue

[Anonymous No.7703333]

>>7703330

[Anonymous No.7703338]

>>7703333
...And that concludes my image dump. To any lurkers, I hope you enjoyed it.

[Anonymous No.7703410]

>>7703283
>titan
>liquid water
>liquid
wait one fucking second

[Anonymous No.7703472]

>>7703234
Phobos and Deimos are the most pathetic moons in the Solar System

[Anonymous No.7703484]

Wouldn't being the least remarkable make it remarkable on its own right?

[Anonymous No.7703490]

>>7703410
There's liquid water under the surface.

[Anonymous No.7703581]

>>7703490
They say that about every moon/dwarf planet these days

[Anonymous No.7703584]

>>7703581
Not really

[Anonymous No.7703590]

>>7703584
Nope they do

[Anonymous No.7703596]

>>7703584
Try educating yourself you stupid fuck.

[Anonymous No.7703821]

>>7703304
Pretty.

[Anonymous No.7703847]

Took a basic astro course this year and we were learning about stars and fusion. But there were some questions left unanswered. Can stars fuse beyond iron? Or do they all die when they get to iron. If so how do elements beyond iron come about? Does that mean black holes are made of iron?

Sorry if I sound like a retard.

[Anonymous No.7703850]

>>7703847
supernova, mang

[Anonymous No.7703981]

stupid question here

how do they know there liquid water miles within a moon's crust, if, you know, weve never actually been there

[Anonymous No.7703999]

>>7703981
Spectral signatures. Same general way mass spectrometers work on Earth.

[Anonymous No.7704006]

>>7703981
Through tetrahedral cross-reading of the halflife decay of the background EM radiation residue left on the moon surface.

[Anonymous No.7704925]

Nice Dump senpai.

[Anonymous No.7705028]

the moon of Earth is so unremarkable that it doesn't even have a Proper Name

[Anonymous No.7705076]

>>7705028
it doesn't need one, because Luna is THE moon

[Anonymous No.7705653]

>>7703490

I thought it was liquid methane.

[Anonymous No.7706233]

>>7703287
>big round rock that is special.jpg
>>7703288
>big round rock that thinks it's hot shit.jpg

[Anonymous No.7706601]

>>7703249
Man I love Io.

[Anonymous No.7707707]

>>7703301
Didn't realise Ceres was that big.

[Anonymous No.7707753]

>>7703263
>If a large moon such as, say, Callisto or Titan, broke free of their planet's gravity and formed a new one which was clear of debris (such as in the void between planets) would it be classified as a planet or something along the lines of a 'rogue lunar body?'
Titan is larger than Mercury (though much lighter), and defiantly in hydrostatic equilibrium. If it cleared its orbit it'd be a planet, and if not it'd be a dwarf planet. Callisto is smaller, but not by much.

>>7703309
Now there's a hell of a photograph.

>>7703320
The surface of Pluto is fucking awesome.
I grew up with astronomy books that told be it was a featureless ball of nitrogen ice. Now we know it has mountains and valleys and weird tiled-plains.
You could actually walk (actually bounce: 0.62 m/s2) down those cracks between the plains, and see down the length to the great intersections.
It's a goddamn place.

>>7703333
Charon though... isn't as great. It's not quite a "gray space rock", but it's close.

>>7703472
>Phobos and Deimos are the most pathetic moons in the Solar System
They're remarkably pathetic though.
Every other planet either has no moons, or at least one interesting moon. Mars just gets a pair of lost boulders.

>>7703410
>wait one fucking second
Liquid water is a major component of Titan's interior.

>>7705653
No, but there are lakes and rivers of liquid methane on the surface.

>>7703847
>Can stars fuse beyond iron?
Yes, but it takes more energy then it provides.

>If so how do elements beyond iron come about?
Really big, failing stars.

>Does that mean black holes are made of iron?
Black holes aren't really made of any traditional material.

>>7703981
>how do they know there liquid water miles within a moon's crust, if, you know, weve never actually been there
There's a decent piece here about it here:
https://en.wikipedia.org/wiki/Titan_(moon)#Bulk_characteristics
Astrogeology must be a really challenging field, though.

[Anonymous No.7707759]

Thinking about space is worthless. It's a void of nothingness that we will never have anything to do with.

[Anonymous No.7707766]

Enceladus is best moon

[Anonymous No.7707769]

>>7703234
your mum

im suprised this one hasnt been mentioned yet

[Anonymous No.7707774]

>>7707753
>Every other planet either has no moons, or at least one interesting moon
Wouldn't being the least remarkable make it remarkable on its own right?
Uranus doesn't really have much to offer.

[Anonymous No.7708499]

>>7707774
>Wouldn't being X make it Y on its own right?
Wouldn't being the fattest make you skinny in your own right?

[Anonymous No.7709013]

>>7707769
Well, now it has. Thank you for your input.

[Anonymous No.7709803]

>>7703256
man just think about looking at those jets from the surface

[Anonymous No.7710625]

>>7707759
yeah, but, if we think about it now, maybe some day the generations after us will be born at just the right time to explore space.

[Anonymous No.7710945]

>>7710625
> ywn spend spring break on Ceres with your Martian waifu.

[Anonymous No.7710951]

>>7703847

All elements beyond iron are made during the expolsion of a supernova. That's why everything beyond iron is fairly rare.

[Anonymous No.7710954]

>>7707753
>dwarf planet

Fucking IAU shill.

[Anonymous No.7710986]

>>7703277
They could very well be geologically active but we would need to get a reading of their crusts and observe if there is any carbon in the area around their orbits.

[Anonymous No.7710992]

>tfw no multi-layered nuclear fusion engine to power a garbage launching landfill neutron star generator that turns into a black hole
>can't create two overlapping black holes
>can't travel in between both black holes event horizons and safely be inside an event horizon on a mathematically determined route in my iridium lined ship.
>why do I even bother.

[Anonymous No.7711815]

pretty pics

[Anonymous No.7711817]

Least remarkable? Probably one of dozens of friggin' moons of Jupiter nobody even remembers, somewhere in the outskirts and on some crooked orbit. Jupiter has some pretty cool moons, but also dozens of extremely unremarkable.

[Anonymous No.7711830]

>>7707759
>It's a void of nothingness that we will never have anything to do with


>he thinks there's such a thing as nothing
>he thinks Earth is not in space right now

turbopleb/10

[Anonymous No.7711976]

>>7703277
Is that its real color? Looks awesome as fuck.

[Anonymous No.7711979]

>>7703304
>little while
on the time sale of the universe maybe.

[Anonymous No.7711981]

>>7703338
let me see if i have some interesting stuff in my space folder.

[Anonymous No.7711983]

[Anonymous No.7711985]

[Anonymous No.7711987]

[Anonymous No.7711992]

>>7711987

[Anonymous No.7711994]

[Anonymous No.7711998]

classic

[Anonymous No.7712001]

>Buy telescope
>Aim at space
>See this coming straight at you
>What do?

[Anonymous No.7712002]

best selfie

[Anonymous No.7712004]

[Anonymous No.7712006]

>>7712004

[Anonymous No.7712011]

Do you think plebs like ourselves will be able to enjoy a view like this for a reasonable price one day? I'd pay up to 100k for a week in space.

[Anonymous No.7712016]

>>7712011
Commercial spaceflight that involves sightseeing trips around Earth and the Moon actually sounds pretty likely in our lifetimes

[Anonymous No.7712022]

>>7707769
fucking idiot

[Anonymous No.7712030]

>>7712011
Absolutely. Well, for certain definitions of "reasonable."

Pound for pound of payload capacity, rockets to LEO are actually about as expensive as jet airplanes. Basically all of the price difference per ticket comes from the fact that you have to pay it all back in one launch.

If an efficiently reusable launch vehicle could be developed, the price per kilo to LEO would fall like a rock. We're talking orders of magnitude here - fuel costs are only something like 99.7% of current launch costs, so price cuts around two to three orders of magnitude would be expected, coming out to between $5 - $50 per kg, or (depending on whether the return system is an integral part of the launch system or considered payload) between about $500 and $50,000 for a ticket to orbit and back.

The kicker is room and board for the week, but there's no real way to guess at that - Bigelow Aerospace's planned habitats would have a rent of ~$2 million for a week, but the dynamics of hotel stays are different than rental, I don't know how much of that is to amortize the launch costs, and drastically lower launch costs could also drastically lower the cost of developing and building space hardware because suddenly your budget could include things like "fly a few prototypes up there and have someone test it in orbit to see if we missed anything" and "maintenance and spare parts" and you wouldn't need to focus so much on cutting weight. Plus, the space hardware market at $5 -$50 / kilo looks totally different in terms of supply and demand than the one today.

tl;dr an efficiently reusable launch system could make a week in LEO feasible for less than $100k, and certainly a day trip.

There's no reason to believe such a craft is fundamentally impossible (SSTOs maybe, but not in general) and a lot of investment money is flowing in to people in the commercial space sector trying to make it happen.

[Anonymous No.7712230]

>>7712011
Virgin Galactic's price tag is actually 100k but I don't know if sub orbital space would be as interesting as that.

[Anonymous No.7712367]

>>7712030
>fuel costs are only something like 99.7% of current launch costs

Are they using a printer ink/LOX mix or something?

[Anonymous No.7713206]

can we talk about the the possible super earth in our solar system

[Anonymous No.7713266]

>>7712030
>fuel costs are only something like 99.7% of current launch costs
I'm gonna guess that was a typo.
0.3%?

>>7713206
I've not heard about anything like that, aside from the rambling of kooks.
Do you have a link?

[Anonymous No.7713287]

How would we be able to detect something like a planet that is in our orbit, but on the opposite side with the sun in front of it?

[Anonymous No.7713316]

>>7713287
center of mass of the system would be shifted

also, another planet in opposite orbit from us would perturb orbits of other nearby planets

[Anonymous No.7713410]

>>7713266

http://arxiv.org/abs/1512.02652
>We exclude that source to be a sub-/stellar member of the α Centauri system, but argue that it is either an extreme TNO, a Super-Earth or a very cool brown dwarf in the outer realm of the solar system.

[Anonymous No.7713804]

>>7713410
>http://arxiv.org/abs/1512.02652
This is incredibly strange.
They were looking for planets in Alpha Centauri, found one, then decided it wasn't in Alpha Centauri at all?

>Again, a low-albedo, thermal Extreme Trans Neptunian Object (ETNO), such as the hypothetical super-Earth of Trujillo & Sheppard (2014), would be consistent with our flux data (e.g. for R ~ 1.5R⨁, D ~ 300AU, Tbb ~ 15K, θ ~80mas, Fig. 5).

[Anonymous No.7713850]

So wait if there are large amounts of water in the interior of other planets, why shouldn't earth have the same? Why do moons seem more likely to have a high percentage of their composition be water?

It's not like earth has an entire layer of liquid water, and if it did the water would mix with surrounding layers; why doesn't that happen on these moons?

[Anonymous No.7713862]

>>7713316
>center of mass of the system would be shifted
What if Earth and other objects in the solder system just have a different mass than previously estimated to make up for the center of gravity being where it is.
>also, another planet in opposite orbit from us would perturb orbits of other nearby planets
our orbit doesn't perturb other nearby planets. Why would this one?

[Anonymous No.7713873]

>>7713804
WE NIBIRU NOW

[Anonymous No.7713883]

>>7713862
>What if Earth and other objects in the solder system just have a different mass than previously estimated to make up for the center of gravity being where it is.
We can pretty easily measure the mass of planets.

>our orbit doesn't perturb other nearby planets.
Sure it does.

Better question: why haven't any of the craft we've sent out of Earth orbit seen it?

>>7713873
No.

[Anonymous No.7713933]

>>7713850
Because Earth is too dense. When bodies are molten the heavy elements sink to the center while lighter material floats on top.
Earth doesn't have that much water despite it covering most of the surface it's only a few km deep. The origin of that water is also disputed, some say it came from the outer solar system in form of asteroids or comets since water wasn't supposed to form so close to the sun.

[Anonymous No.7714855]

>>7711983
Oh fuck can you imagine seeing that for real. Holy shit that's amazing.

[Anonymous No.7715008]

>>7712367
Yep, typo. I meant NON-fuel costs.

[Anonymous No.7715163]

>>7713287

Have one of the probes either inside or outside of our own orbit have a peak?

[Anonymous No.7715198]

>>7712002
this probalb ylsounds dumb, bj it dtil just amazes me th that ths is a picture taken from mars

like, not a prop, not a set for a movie, but a rover on mars

its an alien panet nut it denst look alien at all;m9n9n i wish ic ould go there

[Anonymous No.7715580]

>>7707774
I read a essay about Uranus and it was really inspiring

[Anonymous No.7716536]

>>7715580
HUEHUEHUEHUEHUEHUEHUEHUEHUEHUEHUEHUEHUEHUEHUEHUEHUEHUEHUEHUEHUEHUEHUEHUE