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Q&A

Posts tagged black-holes

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Q&A Can a galaxy be formed from a black hole?

I'm writing creative text and I'm curious to know, just as possibility, can a galaxy by any chance be formed out of a black hole?

3 answers  ·  posted 2y ago by 01e5Dk‭  ·  last activity 2y ago by 01e5Dk‭

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Q&A Could aliens from beyond the singularity of a rotating black hole survive and colonise regions of a normal universe?

Would it be possible for aliens that originated and evolved in a planetary system beyond the ring singularity of a rotating black hole to send individuals out into a normal universe to colonise it?...

2 answers  ·  posted 2y ago by Ichthys King‭  ·  last activity 2y ago by Ichthys King‭

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Q&A Could life similar to life on earth exist and evolve in a large enough region of timespace?

Is it possible for a planetary system to form and support life similar to earth-life inside a region of 'timespace' (which is the space within a black-hole), assuming that there is enough space/tim...

1 answer  ·  posted 2y ago by Ichthys King‭  ·  last activity 2y ago by Ichthys King‭

Question biology black-holes
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Q&A Space-based black hole weapon effects

For the fluff of my story one of the space-ships is equipped with what I hope is one of the biggest F-you weapons in ship-to-ship combat: a miniature black hole launcher. The launcher fires a whop...

6 answers  ·  posted 2y ago by Demigan‭  ·  last activity 2y ago by Demigan‭

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Q&A How would one detect a black hole when there are no more light sources for it to refract?

The universe as we know it has ended. The concept of "natural" illumination ended when the last red dwarves and quasars died out. Now, only brown dwarves and blackholes dot the empty void that was ...

5 answers  ·  posted 2y ago by In the name of the story‭  ·  last activity 2y ago by In the name of the story‭

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Q&A Schwarzschild Metric in a universe with the same space time metric as that described in the orthogonal series, but with massive gravitons?

The universe described in the orthogonal series http://www.gregegan.net/ORTHOGONAL/00/PM.html is one, in which the minus sign in the space time interval is replaced with a plus sign. So this unive...

1 answer  ·  posted 3y ago by Anders Gustafson‭  ·  last activity 3y ago by Anders Gustafson‭

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Q&A Black hole as a storage device?

I'm writing a sci-fi story, and there is a giant autonomous computer planet that constantly gathers resources from around the universe using drones. It stores a super weapon at the core of the plan...

16 answers  ·  posted 3y ago by user69899‭  ·  last activity 3y ago by user69899‭

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Q&A Astrophysical jets used as energy sources

How could astrophysical jets, emitting matter from black holes be used as energy sources by a space-faring nation? How could they be able to collect and use this form of energy?

2 answers  ·  posted 3y ago by at_‭  ·  last activity 3y ago by at_‭

Question space black-holes
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Q&A After surviving a black hole/wormhole, what are the chances of Earth start orbiting in a new solar system?

In the event of our sun suddenly becoming a black hole or wormhole of sorts. It transports the earth to another solar system similar to ours. Would it be possible for our planet to start circling...

4 answers  ·  posted 3y ago by Dawidek‭  ·  last activity 3y ago by Dawidek‭

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Q&A 1 Light Year Diameter Planet

Suppose a species has limitless resources and the ability to construct megastructures of an astronomical scale. Would it be possible, given antigravitational technology (hypothetical), to create a...

14 answers  ·  posted 6y ago by Kcronix‭  ·  last activity 3y ago by Kcronix‭

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Q&A A supermassive black hole is coming our way. When's the latest that we would notice?

I'm trying to build a story around a supermassive black hole, which is ejected from a merger of two galaxies, that is hurtling our own way. What is the smallest realistic distance at which the blac...

3 answers  ·  posted 4y ago by bantu‭  ·  last activity 3y ago by bantu‭

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Q&A How to tell a blackhole from a neutron star covered entirely by Dyson sphere painted in vantablack?

In a galaxy far far away... M6760 (I made it up) is an unusually massive neutron star billions of light years away and it is surrounded by a spherical Dyson sphere painted in new improved formula v...

9 answers  ·  posted 3y ago by user6760‭  ·  last activity 3y ago by user6760‭

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Q&A Is it safe to orbit HDE 226868?

I'm considering a story where an exploration is devised to explore a binary system containing a black hole; the choice is Cygnus X-1, with its companion supergiant star HDE 226868. It would likely ...

5 answers  ·  posted 6y ago by HDE 226868‭  ·  last activity 3y ago by HDE 226868‭

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Q&A Is there a safe but weird distance from black hole merger?

I wish to create a world such that it can support the following plot point: the world experiences gravitational waves that are directly noticeable to the human population (i.e. they can feel or see...

2 answers  ·  posted 3y ago by SO failed us all... Bye...‭  ·  last activity 3y ago by SO failed us all... Bye...‭

Question physics black-holes
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Q&A Is it possible to build a black hole (kugelblitz) gun?

Assume that space warfare is dominated by gamma and x-ray lasers (Wakefield-Plasma and Free Electron Lasers) capable of killing targets several light-seconds away. Stealth in space is possible due ...

2 answers  ·  posted 3y ago by TheDyingOfLight‭  ·  last activity 3y ago by TheDyingOfLight‭

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Q&A Is a "Partial" Black-Hole Possible?

Black holes are created by the gravitational collapse of massive stars. But in theory, black holes can also be created by any mass at all that is confined within a small enough volume of space, de...

4 answers  ·  posted 3y ago by overlord - Reinstate Monica‭  ·  last activity 3y ago by overlord - Reinstate Monica‭

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Q&A Black Hole as a Storage Device Version 2

This is based on: Black Hole as a Storage Device What goes into a black hole doesn't come out (except as random electrons or positrons). However, is it possible to store something within the eve...

4 answers  ·  posted 3y ago by ShadoCat‭  ·  last activity 3y ago by ShadoCat‭

Question physics black-holes
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Q&A If someone dropped a black hole into the Sun, when and how will we notice it?

Suppose someone dropped a black hole into our lovely Sun a few million years ago. It was big enough (far bigger than that) from the start to eat matter faster than radiating it away, and kept growi...

1 answer  ·  posted 3y ago by Alice‭  ·  last activity 3y ago by Alice‭

Question stars black-holes
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Q&A Can a single, larger black hole be split into multiple smaller black holes?

Essentially, my question is, can one larger black hole be split into a system of smaller black holes? I'm assuming energy requirements will be prohibitive, and that it may not be possible without ...

4 answers  ·  posted 3y ago by Ushumgallu‭  ·  last activity 3y ago by Ushumgallu‭

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Q&A How do I feed my black hole?

Strange title I know, but you'll understand why quickly. I wanted to use a black hole to create absurd amounts of power for hopefully obvious reasons (kind of useful). The problem with natural lar...

1 answer  ·  posted 3y ago by Demigan‭  ·  last activity 3y ago by Demigan‭

Question black-holes energy
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Q&A Could black hole civilizations even exist?

I know that currently, black hole civilizations are only theoretical. But here are my thoughts on why black hole civilizations are impossible. Black Hole Civilization Issues 1. Gravity This is...

5 answers  ·  posted 4y ago by Caters‭  ·  last activity 3y ago by Caters‭

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Q&A Could a planetary nebula obscure the presence of a black hole/neutron star?

I have a civilization that lives on a planet located inside a nebula (and orbiting a normal, sun-like star). Would this nebula somehow interfere with/ obscure the sight of a rogue neutron star/ b...

1 answer  ·  posted 3y ago by marmel‭  ·  last activity 3y ago by marmel‭

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Q&A A planet illuminated by a black hole?

Is it possible for a planet to be heated and illuminated by a black hole due to Hawking radiation at the same intensity as by a star? What mass and size should a black hole have to produce the sam...

4 answers  ·  posted 3y ago by Anixx‭  ·  last activity 3y ago by Anixx‭

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Q&A Escaping a blackhole with an Alcubierre drive?

If your ship just got trapped inside the event horizon of an super massive black hole, could the ship "accelerate" back out with an alcubierre drive?

2 answers  ·  posted 3y ago by sirzento‭  ·  last activity 3y ago by sirzento‭

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Q&A Intragalactic velocity past the central black hole

In my story people are traveling from somewhere beyond the opposite side of the galaxy to Earth. The distance traveled is approximately 66 million light-years. I would like the travelers to exper...

2 answers  ·  posted 3y ago by Javor‭  ·  last activity 3y ago by Javor‭

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Q&A Can the event horizon of a black hole be distorted or destabilized by an extreme spin rate

Assuming that there is a means of increasing the spin rate of an existing black hole, what would happen to the shape of the event horizon as the spin rate was increased? In extremis what would even...

1 answer  ·  posted 3y ago by Slarty‭  ·  last activity 3y ago by Slarty‭

Question gravity black-holes
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Q&A Black holes as heat sinks

Cooling in space is a well known difficulty. There are many unpleasant consequences like no stealth in space, difficult space battles which turn into a short wars of attrition (because you have to ...

3 answers  ·  posted 3y ago by Danijel‭  ·  last activity 3y ago by Danijel‭

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Q&A What would a binary black hole look like from the surface of a planet orbiting that system

If it is even possible, what would the Goldilocks zone be like - in fact is such a system even possible of holding life - around a binary black hole? Could it have planets orbiting it? EDIT 1: Oh ...

7 answers  ·  posted 8y ago by grimmsdottir‭  ·  last activity 3y ago by grimmsdottir‭

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Q&A Can we identify black holes in our path flying between the stars?

When traveling at fast speeds through the galaxy, would it be possible to identify where all the black holes were on your path? I know most black holes are identified by their affect on other nearb...

5 answers  ·  posted 8y ago by bowlturner‭  ·  last activity 3y ago by bowlturner‭

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Q&A Is it worth sending a manned mission to a black hole?

Suppose we detect a stellar black hole passing near the Solar system, and we have technology and time to send a manned mission to study it. Are there any experiments or observations that would hel...

11 answers  ·  posted 6y ago by Just Larry‭  ·  last activity 3y ago by Just Larry‭

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Q&A Building a planet with a primordial black hole core

I have been trying to figure out a way of explaining how an advanced society some time in the past built an artificial planet with a black hole at its core and the effects that would have on the pe...

1 answer  ·  posted 4y ago by Althaen‭  ·  last activity 3y ago by Althaen‭

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Q&A Life on planets near quasars

To be very-very simple: The very main setting of my world is a very special and very small galaxy, the galactic core of which is a quasar - with the "iconic" light beam in the middle, serving a sp...

4 answers  ·  posted 6y ago by Zoltán Schmidt‭  ·  last activity 3y ago by Zoltán Schmidt‭

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Q&A Black hole collides with Sun: How rapidly is energy released?

Basic idea: Primordial black hole (2.5% of Sun's mass) directly approaches Sun at fairly rapid pace (300 km/s). Consequently, six days after passing Earth's orbit, it will collide with the Sun; ac...

2 answers  ·  posted 4y ago by ak7‭  ·  last activity 4y ago by ak7‭

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Q&A What would it look like in the accretion disk of a feeding supermassive black hole?

I wanted two characters unaffected by the heat and gravity to be close to a super massive black hole within the accretion disk, at times moving in orbit and at times completely still. Stars and p...

3 answers  ·  posted 4y ago by Aizen-sama‭  ·  last activity 4y ago by Aizen-sama‭

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Q&A Can a black hole be turned into a white hole?

Following the Schwarzschild metric, we could consider that a white hole=black hole with no angular momentum (no spin?) or electric charge. Would be enough to slow down a black hole and somehow remo...

1 answer  ·  posted 4y ago by Yampeku‭  ·  last activity 4y ago by Yampeku‭

Question space black-holes
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Q&A How close could a planet get to a super massive black hole before being destroyed

I wanted to create a scene where two god-like characters are talking or fighting on a planet or fragment of planet to which they've teleported that's about to be obliterated by a black hole. The c...

2 answers  ·  posted 4y ago by Aizen-sama‭  ·  last activity 4y ago by Aizen-sama‭

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Q&A The Science behind Miller's Planet

In the movie Interstellar, Miller's planet is an ocean planet orbiting extremely close to a black hole. The ridiculous tidal effects caused by the black hole cause the planet's water to concentrate...

2 answers  ·  posted 5y ago by Rangoon‭  ·  last activity 4y ago by Rangoon‭

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Q&A Can I contain and control a small black hole within a facility?

A black hole is supposed to suck in everything by nature. Micro black holes are theorized to "fizz out", so for example if one was on Earth it would not grow until Earth was consumed. It would seem...

2 answers  ·  posted 4y ago by worldbuilder‭  ·  last activity 4y ago by worldbuilder‭

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Q&A How could you rapidly increase a black hole's mass?

Say you were using a black hole as a propulsion drive á la Crane and Westmoreland http://arxiv.org/pdf/0908.1803.pdf- so your black hole has a radius of around .9 attometers - super tiny - around ...

3 answers  ·  posted 6y ago by B. Evett‭  ·  last activity 4y ago by B. Evett‭

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Q&A What's the latest we would notice the gravitational effects of incoming super massive black hole?

Assuming we are unable to see the black hole via any way such as gravitational lensing, accretion disc or whatever. This is hand wave approach just to make my setting work, due to this answer whic...

3 answers  ·  posted 4y ago by yole‭  ·  last activity 4y ago by yole‭

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Q&A Is a solar system around a black hole possible?

Is it possible for there to be a "solar system" of sorts with a black hole and a few suns orbiting around it? Could that system be stable and (if so) would it be possible for some civilization(s) ...

7 answers  ·  posted 4y ago by Banish‭  ·  last activity 4y ago by Banish‭

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Q&A How close can a ship get to Sagittarius A?

Assuming that the only fancy available technology is FTL drives (to get there) plus anything needed to protect and sustain a crew during the journey from Earth to Sagittarius A (whether it takes a ...

1 answer  ·  posted 4y ago by Sava‭  ·  last activity 4y ago by Sava‭

Question space black-holes
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Q&A How to accelerate living things really fast without killing them?

Okay, so our society has starting harnessing significant amounts of energy from its sun, and has started mass producing micro-black holes (although there have been experiments with gathering energy...

6 answers  ·  posted 7y ago by PyRulez‭  ·  last activity 4y ago by PyRulez‭

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Q&A How to interface with beings in the galactic core?

Context: So assume there are an unknown number of near-omnipotent/omniscient beings who have been confirmed to live inside of an area of space called the Active Galactic Nucleus (AGN). To provide ...

3 answers  ·  posted 4y ago by Rob Truxal‭  ·  last activity 4y ago by Rob Truxal‭

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Q&A What would happen if the black hole at the center of a galaxy was removed?

Say you have a galaxy, possibly ours, with a central black hole. In an instant the black hole falls through a plot hole and vanishes. What happens to the rest of the galaxy? Does everything keep ...

4 answers  ·  posted 7y ago by AndyD273‭  ·  last activity 4y ago by AndyD273‭

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Q&A Blackholes as Perfect Recyclers or Perfect Batteries: Safe storage, recharge, and usage

Consider the facts that a blackhole: Eats everything that passes through its event horizon. In layman's terms, it is defined as the shell of "points of no return", i.e., the boundary at which...

3 answers  ·  posted 4y ago by Kyle Zabala‭  ·  last activity 4y ago by Kyle Zabala‭

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Q&A Cluster of Black Holes around a Central Point

Within the Star Wars Extended Universe, there is a science base on a small object within a near impenetrable sphere of Black Holes. Is this possible? The place referenced is called the Maw Install...

2 answers  ·  posted 8y ago by The Glis Jackel‭  ·  last activity 4y ago by The Glis Jackel‭

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Q&A How much energy does this sun crushing ship, the CrushSun, use?

Useless Backstory "Why are you waking me up Sergeant? And why did we enter near-light speed?" "We received a distress call, and there wasn't enough time to notify you, sir." "What kind of distress...

1 answer  ·  posted 7y ago by PyRulez‭  ·  last activity 4y ago by PyRulez‭

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Q&A Black hole launcher

Humans developed a new weapon: Black hole launcher. How it works: A mobile particle acelerator acelerates two particles to huge speeds and collide both. A mini black hole is created. The mini b...

3 answers  ·  posted 7y ago by Jorge Aldo‭  ·  last activity 4y ago by Jorge Aldo‭

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Q&A How might a civilization artificially keep a supermassive black hole electrically charged for the lifetime of the black hole?

A civilization creates a supermassive black hole with an electric charge such that the radius of its inner horizon is 3/4 the radius of its outer horizon. In nature, a black hole with this much el...

1 answer  ·  posted 4y ago by Anders Gustafson‭  ·  last activity 4y ago by Anders Gustafson‭