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You know those 3 new potentially Earth-like planets 39 light years away?



 
 
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  #1  
Old May 3rd 16, 06:04 AM posted to sci.astro.amateur
RichA[_1_]
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Posts: 553
Default You know those 3 new potentially Earth-like planets 39 light years away?

Time it would take to get the

Current rocket technology: 365,000-400,000 years.
1957's Project Orion ship: 195-240 years.

Think about it.
  #2  
Old May 3rd 16, 01:45 PM posted to sci.astro.amateur
Gary Harnagel
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Posts: 659
Default You know those 3 new potentially Earth-like planets 39 lightyears away?

On Monday, May 2, 2016 at 11:04:59 PM UTC-6, RichA wrote:

Time it would take to get the

Current rocket technology: 365,000-400,000 years.
1957's Project Orion ship: 195-240 years.

Think about it.


However, if you could accelerate at a constant one g (as experienced by
the ship) then flip over and decelerate, you could get there in 22 years.

I'd be worried about lethal radiation from running into particles, though,
let alone stuff in the Oort clouds of our solar system and that of the
destination star :-(

There must be a better way ...

Gary
  #3  
Old May 3rd 16, 04:43 PM posted to sci.astro.amateur
Davoud[_1_]
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Default You know those 3 new potentially Earth-like planets 39 light years away?

Gary Harnagel:
However, if you could accelerate at a constant one g (as experienced by
the ship) then flip over and decelerate, you could get there in 22 years.

I'd be worried about lethal radiation from running into particles, though,
let alone stuff in the Oort clouds of our solar system and that of the
destination star :-(

There must be a better way ...


Sorry to tell you this, but the reality is that there is no better way.
No way at all, now or in the conceivable future outside of SF. 39 LY
might as well be 39 million LY; we aren't going there.

--
I agree with almost everything that you have said and almost everything that
you will say in your entire life.

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  #4  
Old May 3rd 16, 05:04 PM posted to sci.astro.amateur
Barry Schwarz[_2_]
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Default You know those 3 new potentially Earth-like planets 39 light years away?

On Tue, 3 May 2016 05:45:11 -0700 (PDT), Gary Harnagel
wrote:

On Monday, May 2, 2016 at 11:04:59 PM UTC-6, RichA wrote:

Time it would take to get the

Current rocket technology: 365,000-400,000 years.
1957's Project Orion ship: 195-240 years.

Think about it.


However, if you could accelerate at a constant one g (as experienced by
the ship) then flip over and decelerate, you could get there in 22 years.


39 LY in 22 years is an average speed of 1.77c. Or did you measure
time in the travelers' frame of reference?

--
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  #5  
Old May 3rd 16, 05:16 PM posted to sci.astro.amateur
Chris L Peterson
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Posts: 10,007
Default You know those 3 new potentially Earth-like planets 39 light years away?

On Mon, 2 May 2016 22:04:57 -0700 (PDT), RichA
wrote:

Time it would take to get the

Current rocket technology: 365,000-400,000 years.
1957's Project Orion ship: 195-240 years.

Think about it.


Exactly. Utterly pointless and politically impossible in either case.

(And there are robotic possibilities which could do this much faster.
Which would be the smart thing to do.)
  #6  
Old May 3rd 16, 05:18 PM posted to sci.astro.amateur
Chris L Peterson
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Posts: 10,007
Default You know those 3 new potentially Earth-like planets 39 light years away?

On Tue, 03 May 2016 11:43:08 -0400, Davoud wrote:

Gary Harnagel:
However, if you could accelerate at a constant one g (as experienced by
the ship) then flip over and decelerate, you could get there in 22 years.

I'd be worried about lethal radiation from running into particles, though,
let alone stuff in the Oort clouds of our solar system and that of the
destination star :-(

There must be a better way ...


Sorry to tell you this, but the reality is that there is no better way.


Well, that's not quite true. There is a better way- send a robot.
Still not likely to happen, but within the realm of our current
technology, and not prohibitively expensive.
  #7  
Old May 3rd 16, 05:18 PM posted to sci.astro.amateur
[email protected]
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Posts: 9,472
Default You know those 3 new potentially Earth-like planets 39 lightyears away?

On Tuesday, May 3, 2016 at 8:45:13 AM UTC-4, Gary Harnagel wrote:
On Monday, May 2, 2016 at 11:04:59 PM UTC-6, RichA wrote:

Time it would take to get the

Current rocket technology: 365,000-400,000 years.
1957's Project Orion ship: 195-240 years.

Think about it.


However, if you could accelerate at a constant one g (as experienced by
the ship) then flip over and decelerate, you could get there in 22 years.

I'd be worried about lethal radiation from running into particles, though,
let alone stuff in the Oort clouds of our solar system and that of the
destination star :-(

There must be a better way ...


Here's a start:

http://breakthroughinitiatives.org/Initiative/3




  #8  
Old May 3rd 16, 05:30 PM posted to sci.astro.amateur
[email protected]
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Posts: 9,472
Default You know those 3 new potentially Earth-like planets 39 lightyears away?

On Tuesday, May 3, 2016 at 12:18:19 PM UTC-4, wrote:
On Tuesday, May 3, 2016 at 8:45:13 AM UTC-4, Gary Harnagel wrote:
On Monday, May 2, 2016 at 11:04:59 PM UTC-6, RichA wrote:

Time it would take to get the

Current rocket technology: 365,000-400,000 years.
1957's Project Orion ship: 195-240 years.

Think about it.


However, if you could accelerate at a constant one g (as experienced by
the ship) then flip over and decelerate, you could get there in 22 years.

I'd be worried about lethal radiation from running into particles, though,
let alone stuff in the Oort clouds of our solar system and that of the
destination star :-(

There must be a better way ...


Here's a start:

http://breakthroughinitiatives.org/Initiative/3


From:

http://breakthroughinitiatives.org/Events/4

"The Breakthrough Initiatives were launched in the Kohn Centre at the Royal Society in London on July 20, 2015 - the 56th anniversary of the Apollo moon landing."

Now if they can just get the math right. You'd figure Hawking would have caught that!
  #9  
Old May 3rd 16, 11:54 PM posted to sci.astro.amateur
RichA[_6_]
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Posts: 1,076
Default You know those 3 new potentially Earth-like planets 39 lightyears away?

On Tuesday, 3 May 2016 12:16:28 UTC-4, Chris L Peterson wrote:
On Mon, 2 May 2016 22:04:57 -0700 (PDT), RichA
wrote:

Time it would take to get the

Current rocket technology: 365,000-400,000 years.
1957's Project Orion ship: 195-240 years.

Think about it.


Exactly. Utterly pointless and politically impossible in either case.

(And there are robotic possibilities which could do this much faster.
Which would be the smart thing to do.)


Robots stink. Look how many Mars missions there have been using probes and they STILL have NO idea if any life is there, or HAS been there.
  #10  
Old May 4th 16, 12:03 AM posted to sci.astro.amateur
RichA[_6_]
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Posts: 1,076
Default You know those 3 new potentially Earth-like planets 39 lightyears away?

On Tuesday, 3 May 2016 08:45:13 UTC-4, Gary Harnagel wrote:
On Monday, May 2, 2016 at 11:04:59 PM UTC-6, RichA wrote:

Time it would take to get the

Current rocket technology: 365,000-400,000 years.
1957's Project Orion ship: 195-240 years.

Think about it.


However, if you could accelerate at a constant one g (as experienced by
the ship) then flip over and decelerate, you could get there in 22 years.

I'd be worried about lethal radiation from running into particles, though,
let alone stuff in the Oort clouds of our solar system and that of the
destination star :-(

There must be a better way ...

Gary


Sure, like that infeasible stupid idea of a "solar sail" where "all" they have to do is figure out how to build a laser as powerful as the one at the National Ignition Facility but instead of operating for Femtoseconds, it would have to work for YEARS steadily. 1000x easier to do Project Orion.
 




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