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Questions tagged [supernova]

Use this tag for questions about a supernova: a massive explosion emitting light, heat and radiation that occurs when some stars die.

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Navigating storm fronts in space

Storm fronts — especially surprise storm fronts — are a popular Sci-Fi trope. Ion storms and radiation storms and neutronic storms and they invariably look 2D, like ribbons in space. But ...
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4answers
339 views

Can I trigger supernova artificially?

As far as I know stars are going supernova as a natural process. Can aliens trigger it artificially? If this is possible then: How can I do this (what minimum technology and civilization development ...
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1answer
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Is a supernova powerful to destroy the other star in a binary system?

So, you have the big bad race, whose extermination method is basically to force stars to go supercritical via the power of handwavium. You can assume 1 solar mass for each, but you can change it if ...
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1answer
81 views

What happens if there is a supernova in a Tatooine solar system?

I'm 13 and very interested in world building and creation, recently having an idea causing many questions seemingly unanswered by the internet. I am aware that a planet can run an unstable figure of 8 ...
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3answers
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How efficient can my neutrino detector be?

In a class discussion last week, someone pointed out that a typical core collapse supernova releases $\sim10^{46}\text{ J}$ of energy in the form of (anti-)neutrinos while only radiating $\sim10^{44}\...
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3answers
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Few-hours order effect on a solar system if another star was suddenly added?

Context For those interested A Class 3 Kardashev Civilization has sent a small recon fleet (~1 million ships) to lay siege to system. Sometime after arrival, an extraordinarily dangerous entity is ...
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7answers
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What would the signs of the Sun undergoing a supernova be? [duplicate]

If our Sun was to suddenly undergo a supernova, what would the signs be? Would there be any signs we could notice before our death? Assume that the Sun was to gain an increase in handwavium and thus ...
8
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3answers
386 views

Would ripping the core from a Sun-like star cause it to explode?

I'm well aware that a Sun-like star is incapable of producing a supernova at the end of its life. However, would removing the core or a fraction of it, trigger an explosion from the star collapsing in ...
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22answers
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My star will explode as a supernova. What can I do in order to ensure that my planet survives that?

I am posting this in behalf of a friend of mine from a distant world. Here is his message properly translated to English: Hi, Sol3αlings1. My name is $ѬӚᕕƨ⧬௵44ħ$. We are peacefully and we need your ...
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2answers
703 views

Could a civilization engineer supernovae?

The Eternal Emperor wants to throw a party the likes of which the galaxy has never seen. The billionth anniversary of his reign is fast approaching (a mere hundred thousand years away!). He has ...
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2answers
279 views

What should humans do in a supernova?

In my story where thousands of humans are transported to the planet with dinosaurs that is 400 light years away, there are bound to be lots of warnings on the generation ship. Friendly aliens are ...
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4answers
209 views

Exploding the world as a planetary escape plan

You are an intelligent species whose sun is very near expiring. When your sun expires your world will be engulfed by it. You are evacuating your planet as fast as possible but you don't yet have ...
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2answers
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How much warning would a civilization have that a nearby star was about to go supernova?

I want to have aliens approach the Earth looking for a new world to colonize. They come from a similar planet circling a similar star, but either their star has entered its red giant phase (how long ...
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5answers
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Can a planet survive a supernova?

The Sun has nowhere near enough mass to enter the branch of stellar evolution that would lead to a supernova, fortunately for us. However, there are planets that orbit stars that are destined to go ...
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2answers
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If the sun were to go supernova, how long would Earth have before it was consumed? [closed]

Assuming some magic handwavium caused the sun to go supernova, how long would it take to reach Earth and wipe out the planet? I know it would be eight minutes until the light reached us, but how fast ...
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6answers
709 views

Witnessing the death of a star that would go supernova

Death of stars are fun and make for a great premise, but the actual dying of stars that are conducive to intelligent life aren't so interesting. Stars that can go supernova are too short-lived to ...
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2answers
160 views

How could events triggered by a supernova accelerate the death of a main sequence star?

My story revolves around a star going supernova. The 'Earth' in this story is about 100 light-years or more away (a safe distance, but not too far away). I need this supernova to somehow accelerate ...
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7answers
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How can we extinguish a supernova?

Assuming in a galaxy far far away there is a Type 2 civilization (currently on the verge of making the transition to Type 3). Their scientists predicted that the star (red giant) they are orbiting is ...
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3answers
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What technologies and sciences are needed to detect a star going supernova?

What technology (at minimum), devices or minimum civilization development is needed, so that an individual member of this civilization would be able to detect that some star is going supernova? My ...
14
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1answer
786 views

How close must a supernova be to severely harm the Earth?

I did a little looking and it appears stars outside of 10 parsec/33 ly will have very little effect on the Earth. What it did say was that inside that range the gamma rays would affect our ozone ...