Aye bruno you want some pizza?

But those are ion thruster powered by a nuclear device

those are nuclear thermal ion drives

Russia tried a thermonuclear this time

the thruster is still an ion drive

without us breaking all current laws of physics we know off, there wont be any FTL tech. So settle in for the Solar Empire and the of chance of other far far away Solar based Empires

A bit different, but kinda similar

Thing out of the US, China and Russia Russia is the least likely power to produce such weaponry and field them on a large scale

it's power plant is just different

No, the reactor was not a fusion one

It was a fission one

Fusion reactors are in their infancy

Fusion reactor is futuretech lads

remember that

Do not make a mistake of underestimating Russia or China

Yes

That mistake will cost ya

ah, fusion reactors are not yet proven feasible

What we have is Fission

they could just be perpetual motion machines when trying such a thing without a massive gravity well

Russia has the smallest functioning nuclear reactor cooled by molten lead

They did their homework

well that is a rather old design even

Perpetual motion machines don't work

Irrelevant

i know this; and a fusion reactor might be one

Nukes are not perpetual, they are just an exceptionally long lasting energy source

because no net output as of yet....

No energy source lasts forever

Perpetual motion machines are impossible cause friction on a planetary level, and there is also friction in space because Space isn't a vacuum devoid of gravity

no shit sherlock

^^^

Thermodynamics called, it said you need an award for being mr obvious

nuclear fusion might also be infeasible in terms of getting more out than you put in

@ManAnimal its not actaully

ITER split even on input-output in 2008

it's quite feasible within this century even

yes, quite actually; science is easy; engineering i hard

That's about the best the fusion got so far

@SideTracker it's definitely not doable

yes, so stil qualifies as 'perpetual motion'