How long would we survive if the sun would collapse into a black hole?

how long would we survive if the sun would collapse into a black hole?

Other urls found in this thread:

www
youtube.com/watch?v=A4GFAjX62Yg
what-if.xkcd.com/49/
twitter.com/NSFWRedditGif

a few days

Our sun isn't even remotely close to the size of star needed to form a black hole.

let's just assume it magically would

/thread
OP can't even science

It is below the required mass. In any event we are fucked rhe moment it uses up enough fuel to become a red giant.

Well if it were magically turned into a black hole we would enter a permanent ice age. How long until we freeze and starve to death with no sunlight? A decade or two.

Suns light takes like 12 minutes to reach us. No light = frozen earth very quickly

if the sun turned into a black hole of 1 solar mass the orbits of planets etc. would not change. as long as the mass remains the same the gravity felt by planets won't be impacted so nothing will get thrown out of orbit.

however the sky would go black, plants would die etc maybe a small set of humans would survive

Nah the atmosphere and oceans will ensure a slower cooling process plus we have nuclear plants and shelters. We'd get by for 20-30 years

IF the sun were to be turned into a black hole, the gravitation pull of it would be the same. The rotation of the Earth around the black hole wouldn't change from that of the Sun.

The major problem would be the heat lost. The dark side of the Earth cools about 20-30F at night without the heat of the Sun. You could expect a similar cooling each 12 hours or so. This means the Earth would freeze within a day or so. People could try to stay warm by burning large amounts of fuel, but it would be a losing battle.

What if we go away from the sun at 12 minutes per hour and stay in the warm?

They give off insane amounts of radiaton, but we wouldn't even live to see it. A star collapsing into a black hole would go supernova first, and that would be game over. We'd all be dead before we knew what hit us.

Assuming for now that it was right size? Instantaneous, a star must first implode, then explode then implode again. .

>no sun
>small set of humans would survive
>We'd get by for 20-30 years
>no sun
kek

Until we died from the cold.

No because it will be night half of the time.

yeah we won't instantly freeze. but the atmospheric effects would be tremendous. a lack of sunlight would dramatically alter the patterns of trade winds etc due to a lack of convection. rainforests would die out completely and there would be no global carbon store.

i'm talking a small population living in a self sustained habitat, it's definitely possible on a very small scale

Microorganisms performing chemosynthesis near hydrothermal vents would survive indefinitely

If the sun would turn into a black hole the gravity would increase to the level of stretching time so we would last both 1 second and forever

We would move underground.

Actually, some convert to black holes without the suprnova. They're called Unnovas. They need to be a certain size, rotation, etc. There's been a recent unnova. I'm trying to find the information on it.

It's 8 minutes per hour normie

Nuclear power plants produce electricity amd hot water, they can support medium sized cities with ease.

We have a fuckload of canned food.

Earth will cool down gradually.

>20-30 years
without plants, frozen oceans and no animals... Where the food came from for 30 yeas???

kek
>equal mass
>way higher gravity

Oh shit i forgot about air. We can open packages of Lays for extra air.

Here's the article:
www upi com/Science_News/2017/05/25/Astronomers-witness-stars-death-birth-of-new-black-hole/5811495736267/?utm_source=fark&utm_medium=referral&utm_campaign=im&utm_tracker=1736664x84899

>We can open packages of Lays for extra air.
kek

you watch too much interstellar you cunt

Probably only a few hours

I havent seen the sun in 20 years and Im fine

if our sun turned into a black hole our solar system would disappear almost instantly

Even still, wouldn't you think we'd die from the radiation exposure long before we'd freeze? Hard x-rays and gamma radiation would partially be absorbed by the ozone layer, but I don't think it would be enough.

A sun sized black hole wouldn't kill us with gravity.

Fuck me you're thick, all the planets would continue to circle the new blackhole exactly as they do now. The mass of the black hole is identical to that of the sun, even if it were higher the orbits would not be significantly effected.

Why not kill yourself?

black holes aren't magic vacuums like in sci-fi mate a black hole with the mass of the sun can be orbited just like the sun

black holes only release radiation from heating up gas etc. that orbits it. it doesn't release radiation from nowhere. there isn't much mass in our solar system compared to the black hole at the middle of the milky way releasing loads of x-rays.

the earth wouldn't freeze instantly heat would be retained for a while in the atmosphere and oceans and land. we would die over a year or two probably.

7

Most plants & animals would die off quickly & the cold would preserve their flesh. After eating those, humans would start eating each other till a sustainable population of a few million emerged. These could go on using nuclear power & the remain fossil reserves

where would we get oxygen from with no plants to support a few million? literally every plant on earth would die. the place would be barren. the atmosphere would freeze and fall to earth. the oceans would freeze over. how would nuclear power plants work when the temperature is -100 degrees celsius? how can you mine for fossil fuels in a frozen ground the oil would be frozen solid

>using nuclear power & the remaining fossil reserves for food production.

biodomes powered by nuclear reactors could grow plants

Yeah nope. Too much scifi-movies. The mass of the black hole is the same as the mass of the object that turned into one. It's just a lot, A LOT more dense. Just like your head. You dense motherfucker.

Also, since OP must assume Sun just magically turns into a black hole (not going thru red giant phase which would eat our planet) the answer is we'd freeze to death. So a couple of months at best. /thread

Yeah that guy he was replying to said 12

Well played user

how the fuck are we going to build biodomes in the mass panic that has ensued? you think we will just go to IKEA and get a flatpack biodome? where will we get the materials from? anyone who isn't inside a biodome before the sun turns into a black hole will freeze to death

We'd be dead long before then.

A black hole within several light years could fuck the orbits of the planets up long before it suck anything in.

holy cringe

stop baiting anyone who knows anything about physics

It would be the same mass, so we'd experience the same time dilation around the sun that we already do.

It's not zero, but it's barely noticeable. The sun's not massive enough and we're not deep enough in the gravity well either. We'd have to be approaching the event horizon for significant time dilation to occur.

The black hole in Interstellar stretches time that much due to both the fact that it's supermassive and that it's spinning at near the speed of light. There's some scientific basis for that increasing how much it warps space-time and potentially allow you to go beyond the event horizon without dying, although in reality you'd still ultimately be crushed in the singularity without the Tesseract to save you. It kind of makes sense because the beings needed them to be able to glimpse a singularity without dying, and that was the only possible way to do it (with the extreme time dilation being an unintended yet unavoidable consequence of such a black hole).

Its possible for the human race to survive, is my point. No guarantee off course.

be quiet you fucking nigger don't use interstellar as a source how autistic can you be

wow.... such an interesting topic...
youtube.com/watch?v=A4GFAjX62Yg

I'm not, since it doesn't really have anything to do with this question.

They don't really ever explain that shit in Interstellar (besides off-hand mentioning that the black hole is "spinning") so technically I'm not using the movie as a source at all. I just thought it was interesting to use "real" science to justify some events in a movie. It wasn't all complete bullshit. There's more wrong with the way space travel works in the movie and various other inconsistencies and plot devices than with the physics of it.

That was the #1 reason why I hated interstellar so much. Infinite universe worth of planets/galaxies but nah, let's go explore the planets orbiting a black hole...

Fuck that movie and fuck that blue bearded "chip" they called in for help keeping the physics "real"

How large is the black hole? Because that would make a difference on what would happen and how fast it would happen

The beings led them to a place where they could view a singularity without dying. The only place they could do that is a black hole with very specific properties which would be incredibly rare. So the wormhole took them to that one place. This made sense to me.

the same mass as the sun you bellend, no orbits would change, at all.

how, :big, is the universe
what is the object that contains the universe, called?

It would still be the mass of the sun, just have its volume reduced to the point that it becomes a black hole (which it wouldn't otherwise).

The science/physics in that movie were bullshit anyways, if the gravity on the water planet was really strong enough to make waves hundreds of feet high it would have wreaked havoc with the internal organs and fluids of any human landing there.

We just need to travel 18 minutes per hour

How about forget the singularity and just go find a new habitable planet?

Oh right, but then Matthew M couldn't mess around with the kids bookshelf.

Well temperatures would drop, but with earth's internal heat we could live underground. The biggest problem would be the lack of sunlight. With enough powerful artificial lights we might grow enough vegetation to sustain an entire food chain. Using nuclear powerplants and/or geothermal plants i'd say that with our current technology and with some preparation it could actually be liveable

7 minutes

The water planet's gravity wasn't that high. They said it was just slightly higher than Earth's. It's tidal forces from the black hole that caused the waves. They wouldn't necessarily feel that, just like we don't feel the tidal forces of the moon.

If they didn't, they wouldn't be able to save humanity. The being's goal was to both find a habitable planets and to save humanity. That system included the means to do both. It was clearly specifically chosen by the beings, the crew didn't really have a choice over where the wormhole led them. They just had to do what they could with what was found there, and they didn't have all the information.

This more or less

It won't though. Not big enough. It'll grow in size and shed it's layers.

You ocean-going bell-end.

Can you explain the process dear user? I know I should google/wikipedia it but I thought a more personal explanation by another human being will help me understand the rough idea behind it.

We wouldn't die as soon as the sun went dark. Like others said, the Earth would retain its heat for a while because heat isn't lost to space very quickly.

It would be a matter of years before the surface becomes completely inhospitable, though we could still find means to survive. The main problem is how many other things would die which would severely reduce our food sources. And with all plants dead, there won't be anything to replenish the oxygen. That's the kind of stuff that'll kill us, possibly before the cold does.

Behind the formation of a black hole, or a red giant?

what-if.xkcd.com/49/
This effectively answers the question. It refers to the sun just "switching off", rather than turning to a black hole, but it's functionally the same situation.

About what you said regarding red giant. Why would the sun become a red giant?

There's too much stacked for it to not collapse, discomfort leads to comfort and people struggling will struggle in equal measure against each other. The few who remain will be to far in between and after that you get stuck with the garden of eden and a perfect garden. How long would life survive if it was lived? Fuck the sun, time can suck a dick too. It would be a matter of weeks before there wasn't enough room for you on the surface or below it.

black holes emit gamma rays when some of the gas they consume gets sped up to near light speed. the vortex emits the gamma rays out of the poles of the black hole. if the sun's rotation stayed the same, the gamma rays would be perpendicular to the Earth, and it would require a lot of gas in the general area of the Sun which there really isn't much.

i'm not an astrophysicist, so i could be wrong.

Ok well then these "beings" as you call them are fucking retarded. Wormhole directly to a system that has an Earthlike planet but no black hole...

But then Matthew couldn't play with the books and that whole useless whaaa whaa muh daddy part of the movie wouldn't be there to bore us to death.

It would've been impossible to save the people on Earth without the information the singularity inside the special black hole provided. They wanted to save the people on Earth too, I guess.

It's kind of hard to explain. When a star goes late into its life cycle, it's depleted most of its hydrogen fuel and the core starts to collapse due to gravity, without the outward force of the energy produced by nuclear fusion. In stars like the sun, some previously inaccessible hydrogen is pushed out by this process and start to burn again, but only in the outer shell, which causes it to expand. It burns at a lower temperature, which is what makes it red, but it gets huge.

Eventually these "shells" are shed out in layers, and then all that's left is the core, which starts out as a white dwarf and then slowly cools into a black dwarf, where it no longer gives off any light and is just a lump in space.

Most stars go through this process, though massive ones can go into supernova, and the most massive end up becoming black holes after the supernova.

>12 minutes per hour
Kek

Man with the amount of filth going on in b when I saw this I knew at least there is one place that hasn't been tarnished yet, and that's space. It's too bad society doesn't push for it as much anymore.

maybe I should take astronomy this fall?

We would just travel 8 minutes per hour to stay on the warm side

First of all, thank you for the detailed explanation. I appreciate your time and effort.

So the sun will become so big, it'll consume us? Is that what you mean? Or you mean we will eventually die from lack of heat source that comes from the sun?

Same mass, smaller space. Our orbit would change a bit and so would tides, but not greatly. Life would almost completely collapse, though. No plants, etc...

The sun is expected to engulf most of the inner planets where it goes red giant. But even if it doesn't, it'll get so hot that Earth will be turned into a cinder.

And then, when that period is over and the sun is just the cooling remains of its former core, Earth's cinder will freeze.

When the sun dies, we die.

ur moms cunt

Alright I got it. Thanks again dear user.

We are already dead. We have been in a simulation ever since the first particle of antimatter formed in the Large Hadron Collider, years ago.

The irony here, is that the expanding sun will be much cooler than it is now when it either engulfs or scorches the fuck out of Earth.

Anthropogenic CO2 aside, Global Warming from a cooling sun is what's going to eventually rek us in the end.

5:21

You can orbit a black hole just like a star so the planet would probably keep going around but the gravitational forces might fuck the tectonics up.

The real issue is that the world would freeze in just a few hours with no heat and the people with bomb shelters and stuff might last a few months but there is no coming back from no sun it's pretty much dunzo to humans

Actually we could move to Europa and the massive amount of heat given off by the heat would create a sustainable environment, so it would actually be more beneficial than the way the sun is actually gonna die

And the earth wouldn't even die because of getting sucked in, because it's prolly outside the event horizon

Well, the red giant is in fact hotter, but mainly because it's so big. It has greater overall luminosity and because it's expanding it also gets closer, so the sunlight that hits us will be much hotter than it is now.

In fact, the sun's temperature always gradually increases. The more the fuel is depleted, the hotter it burns and the faster it burns more fuel.

This is over the course of about 5 billion years, mind you. This doesn't account for the affects of climate change.

Not if we go to Europa

...

It would be a matter of hours for there be to be a noticeable change in temperature globally, but then it plateaus for a while. With direct sunlight gone, the Earth is immediately colder, but it'll hold its ambient temperature for years. In a couple decades the surface will be completely inhospitable, but that's much slower than near instantly.

Of course, plants will die very quickly so the basis of the food chain collapses almost immediately. Life becomes unsustainable barring unlikely scenarios.

Soilent green

No it would actually be incredibly warm and blacks holes give off radiation that might be able to sustain photosynthesis

Why not a White Hole? You some kind of racist?