Questions tagged [fission]

For nuclear reactions involving the splitting of elements such as Uranium or Plutonium, generally for the purpose of generating power or weaponry. Subclass of the [nuclear] tag, not to be confused with [fusion]

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21
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3answers
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Why would a nuclear powered spaceship needs to wait a few days before restarting the reactor engine?

Set some 50 years in the future, every spaceship in space is powered by a nuclear powered reactor and most of them came equipped with an ion propulsion engine for acceleration. I noticed that every ...
4
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1answer
93 views

Why don't ejectable fission reactors proliferate if meltdown is still a concern?

Set in the not-so-distant future, interplanetary travels are the norm. Most spaceships are powered by fission reactors, and accidents do happen due to negligence or flaws in the system. It will ...
5
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3answers
316 views

Is it possible for a creature to exist as a biological nuclear reactor?

This is somewhat different to this question on the possibility of biological fusion reactors as I am curious if a living FISSION reactor is more plausible.
8
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5answers
851 views

What could cause a spike in the natural uranium depletion rate?

What is a possible event${^*}$ that would cause a spike in the speed of $^{235}$U fission and reduce its average concentration in ore worldwide? As I understand the physics of the process, it is ...
10
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2answers
197 views

Can a fission satellite duplicate the radiance frequencies of a star?

I sometimes think about the arrogant dwarf starsmiths in the question. How to blow up a star by accident? I pose the question in the voice of the dwarf, probably because I am hungry for down votes. ...
22
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11answers
8k views

Why would Fission be used in a world where Fusion reactors exist?

In my world, all terrestrial bodies in the solar-system of over 900 km size have a significant human presence. Earth-moon Travel is as common as an interstate road trip, and Interplanetary travel is ...