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Potentially habitable world found just 11 light years away

PoS said:
They write science fiction- which is a form of fantasy.


A theoretical limit of an Orion nuclear pulse is 9800 kms, which would still take over a 1800 years to get through one light year. Let's not even mention the gazillion nuclear bombs you'd need to build to keep it going.
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9800 kms is over 3% of c which is a lot faster than you're saying...

And Daedalus planned on a terminal velocity of 12% of c... let's see do I believe you or rocket scientists...



Alcubierre is pure speculation. It is proposed that a ship has to create a warp bubble around it, but there is no theory on how to create one. Its just fantasy.
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You seem confused about what defines fantasy. Star Trek is fantasy... Alcubierre drive is a scientific hypothesis, with real mathmatics behind it, reasonably consistent with existing theories, and taken seriously by more than a few actual NASA scientists.

I said plainly it is not achievable at this time. Perhaps A.W. itself will never be. But if there are a couple of possible loopholes, there are probably others. It is not beyond the realm of possibility that we'll find a way at some point.

This is clearly a subject on which your mind is unaccountably closed; so be it.
 
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Goshin said:
9800 kms is over 3% of c which is a lot faster than you're saying...

And Daedalus planned on a terminal velocity of 12% of c... let's see do I believe you or rocket scientists...
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9800 kms is only slightly more than 1% of c.

Daedalus is not an Orion pulse drive, its a fusion drive, and it will still take a very very long time to get to one lightyear- nice try but still no cigar. Also, it is an unmanned spacecraft so there's another nail in that coffin.

You seem confused about what defines fantasy. Star Trek is fantasy... Alcubierre drive is a scientific hypothesis, with real mathmatics behind it, reasonably consistent with existing theories, and taken seriously by more than a few actual NASA scientists.
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Really? Why havent they built one then? Alcubierre remains just a fantasy, because it is one theory built on another theory, neither of which has been workable- and it needs both in order to work.

I said plainly it is not achievable at this time. Perhaps A.W. itself will never be. But if there are a couple of possible loopholes, there are probably others. It is not beyond the realm of possibility that we'll find a way at some point.

This is clearly a subject on which your mind is unaccountably closed; so be it.
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I have an open mind, thank you very much, but I like to discuss things in the realm of possibilities and practicality when it comes to these types of pronouncements. Just because somebody writes an article about how a thing is possible doesnt make it likely. There's plenty of failed theories out there.


sanman said:
A nuclear fragment drive could get up to a good fraction of C. Fusion propulsion is also being worked on, and that would be able to do it too, if it can be made to work.

Another idea under investigation is the propellantless Mach Effect drive, which should be able to beat them all, if it works out.
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Pfft. Nuke fragment drive still wont be enough. The only way to get to the stars is via FTL, and according to what we know its impossible.

Mach Effect drive (lol) is another one of these "impossible" drives that violates physics, just like the EM drive. Back to the drawing board.
 
PoS said:
Pfft. Nuke fragment drive still wont be enough. The only way to get to the stars is via FTL, and according to what we know its impossible.

Mach Effect drive (lol) is another one of these "impossible" drives that violates physics, just like the EM drive. Back to the drawing board.
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Ohh, as if FTL doesn't violate the laws of physics.

Mach Effect drive is not known to violate physics, because it relies on Mach's Principle, which has never been invalidated and was one of the precursors for Relativity.
 
Goshin said:
NASA is working on electromagnetic shields for spacecraft, similar to how Earth protects our biosphere just on a smaller scale.
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That's what I was referring to. :2bow:
 
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