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That "Earth-like" planet 490 light years away. SO WHAT?



 
 
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  #1  
Old May 9th 14, 08:11 AM posted to sci.astro.amateur
RichA[_1_]
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Default That "Earth-like" planet 490 light years away. SO WHAT?

What good is it? With current Apollo-derived rocket technology, it would take what, 3.5 MILLION years to get to it? IF they'd kept Project Orion going and kept up development, they could get there in about 600 years.
  #2  
Old May 9th 14, 02:46 PM posted to sci.astro.amateur
Chris L Peterson
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Default That "Earth-like" planet 490 light years away. SO WHAT?

On Fri, 9 May 2014 00:11:23 -0700 (PDT), RichA
wrote:

What good is it? With current Apollo-derived rocket technology, it would take what, 3.5 MILLION years to get to it? IF they'd kept Project Orion going and kept up development, they could get there in about 600 years.


Humans will never leave the Solar System. It's not going to happen.
What's good about identifying planets similar to Earth is that it
provides targets for more detailed study (that's what all surveys are
for). Looking at systems similar to our own is an important way of
learning more about how the Solar System formed, possibly how life
formed, and what we can expect in the deep future.
  #3  
Old May 9th 14, 03:24 PM posted to sci.astro.amateur
oriel36[_2_]
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Default That "Earth-like" planet 490 light years away. SO WHAT?

On Friday, May 9, 2014 2:46:33 PM UTC+1, Chris L Peterson wrote:
On Fri, 9 May 2014 00:11:23 -0700 (PDT), RichA

wrote:



What good is it? With current Apollo-derived rocket technology, it would take what, 3.5 MILLION years to get to it? IF they'd kept Project Orion going and kept up development, they could get there in about 600 years.




Humans will never leave the Solar System. It's not going to happen.

What's good about identifying planets similar to Earth is that it

provides targets for more detailed study (that's what all surveys are

for). Looking at systems similar to our own is an important way of

learning more about how the Solar System formed, possibly how life

formed, and what we can expect in the deep future.


Listen to yourself for goodness sake, the possibility that certain supernova are not the death stars but the birth of solar systems was first presented in this forum. Evolutionary stellar processes and subsequently solar system evolutionary processes have a geometry to it, I saw it 4 years before the images emerged and had a single copyright on that issue back in 1990 -

http://www.cfa.harvard.edu/sins/pict...ringcircus.gif

There are now only getting around to the idea that stars survive a supernova event but have still to adjust to the idea that the event is a transitional phase in stellar evolution and not the demise of a star.

You are fine with terms such as 'deep future',I am sure it impresses teenagers however what anything worthwhile is be demonstrated you prove yourselves to be merely passing a signpost I passed many years ago.




  #4  
Old May 9th 14, 03:51 PM posted to sci.astro.amateur
Chris L Peterson
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Default That "Earth-like" planet 490 light years away. SO WHAT?

On Fri, 9 May 2014 07:24:42 -0700 (PDT), oriel36
wrote:

Listen to yourself for goodness sake, the possibility that certain supernova are not the death stars but the birth of solar systems was first presented in this forum. Evolutionary stellar processes and subsequently solar system evolutionary processes have a geometry to it, I saw it 4 years before the images emerged and had a single copyright on that issue back in 1990 -

http://www.cfa.harvard.edu/sins/pict...ringcircus.gif

There are now only getting around to the idea that stars survive a supernova event but have still to adjust to the idea that the event is a transitional phase in stellar evolution and not the demise of a star.


As usual, I really have little idea what you're talking about.

Whether you want to say a star survives a supernova just depends on
whether you want to label the stellar remnant as another phase in the
"life" of a star. Most consider it quite different because it's no
longer fusing.

That said, the Sun will not produce a supernova. It will continue to
evolve, such that life is no longer sustainable on Earth in a few
billion years. There will be no humans then, of course. There will be
no humans in just a few million years. Our own deep future isn't very
deep compared with the deep future of the Solar System.
  #5  
Old May 9th 14, 05:14 PM posted to sci.astro.amateur
Lord Androcles[_3_]
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Default That "Earth-like" planet 490 light years away. SO WHAT?



"Chris L Peterson" wrote in message
...

On Fri, 9 May 2014 00:11:23 -0700 (PDT), RichA
wrote:

What good is it? With current Apollo-derived rocket technology, it would
take what, 3.5 MILLION years to get to it? IF they'd kept Project Orion
going and kept up development, they could get there in about 600 years.


Humans will never leave the Solar System. It's not going to happen.
What's good about identifying planets similar to Earth is that it
provides targets for more detailed study (that's what all surveys are
for). Looking at systems similar to our own is an important way of
learning more about how the Solar System formed, possibly how life
formed, and what we can expect in the deep future.

================================================== ====
That depends on how you define "human", "life", "intelligence". If we create
artificially intelligent robots they will be as much our children as the
biological kind, but without the failings of emotional hang-ups. Humans will
have evolved. In that sense humans will someday leave the Solar system.

http://en.wikipedia.org/wiki/Von_Neumann_machine

  #6  
Old May 9th 14, 05:50 PM posted to sci.astro.amateur
Chris L Peterson
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Posts: 10,007
Default That "Earth-like" planet 490 light years away. SO WHAT?

On Fri, 9 May 2014 17:14:38 +0100, "Lord Androcles"
wrote:

That depends on how you define "human", "life", "intelligence". If we create
artificially intelligent robots they will be as much our children as the
biological kind, but without the failings of emotional hang-ups. Humans will
have evolved. In that sense humans will someday leave the Solar system.


Yes. But I think the fact that we don't observe such things strongly
argues for the position that technological intelligence is
self-limiting and short lived.
  #7  
Old May 9th 14, 06:07 PM posted to sci.astro.amateur
Brad Guth[_3_]
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Default That "Earth-like" planet 490 light years away. SO WHAT?

On Friday, May 9, 2014 12:11:23 AM UTC-7, RichA wrote:
What good is it? With current Apollo-derived rocket technology, it would take what, 3.5 MILLION years to get to it? IF they'd kept Project Orion going and kept up development, they could get there in about 600 years.


It's another good distraction, keeping us from noticing their impending NWO.
  #8  
Old May 9th 14, 07:13 PM posted to sci.astro.amateur
Lord Androcles[_3_]
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Posts: 575
Default That "Earth-like" planet 490 light years away. SO WHAT?



"Chris L Peterson" wrote in message
...

On Fri, 9 May 2014 17:14:38 +0100, "Lord Androcles"
wrote:

That depends on how you define "human", "life", "intelligence". If we
create
artificially intelligent robots they will be as much our children as the
biological kind, but without the failings of emotional hang-ups. Humans
will
have evolved. In that sense humans will someday leave the Solar system.


Yes. But I think the fact that we don't observe such things strongly
argues for the position that technological intelligence is
self-limiting and short lived.

================================================== ===
It's early days. Not so long ago we used large animals to do our muscle work
for us; we replaced those with steam engines, tractors and shovels, then
diesel engines, and now we have adding machines to replace clerks who did
our accounting for us. We've only just scratched the surface of what a
computer is capable of. The breakthrough in AI will come when a computer has
access to an expert system and designs its own learning programs. Today we
can not only write a program to play tic-tac-toe and never lose, we can
write a program that LEARNS to play tic-tac-toe by trial and error, as a
child does. I know this because I've done it, the machine plays every
combination their is, in a tree, then clips any branches that lead to a
loss. Intelligence is the ability to adapt what we already know in a strange
situation. We knew birds could fly and needed wings, so the Wright brothers
built wings, but technological flight was self-limiting and short lived ...
until it improved.

-- Lord Androcles, Zeroth Earl of Medway

  #9  
Old May 9th 14, 08:05 PM posted to sci.astro.amateur
Chris L Peterson
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Posts: 10,007
Default That "Earth-like" planet 490 light years away. SO WHAT?

On Fri, 9 May 2014 19:13:07 +0100, "Lord Androcles"
wrote:

It's early days.


For us. But it seems likely that technological civilizations existed
elsewhere in the galaxy billions of years ago. If they were stable,
they should be evident to us.
  #10  
Old May 9th 14, 09:01 PM posted to sci.astro.amateur
Brad Guth[_3_]
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Posts: 15,175
Default That "Earth-like" planet 490 light years away. SO WHAT?

On Friday, May 9, 2014 12:11:23 AM UTC-7, RichA wrote:
What good is it? With current Apollo-derived rocket technology, it would take what, 3.5 MILLION years to get to it? IF they'd kept Project Orion going and kept up development, they could get there in about 600 years.


Better yet is an entire solar system that's likely similar to that our our solar system.

http://www.laboratoryequipment.com/n...other%E2%80%99

"The solar sibling his team identified is called HD 162826, a star 15 percent more massive than the sun, located 110 light-years away in the constellation Hercules. The star is not visible to the unaided eye but easily can be seen with low-power binoculars, not far from the bright star Vega."

However, for every solar system planet, planetoid and/or moon, there's likely ten rogue, and/or a thousandfold if you'd care to include what brown dwarfs have associated with their much smaller and cooler type of low-mass star or super-gas giants that can be found just about everywhere, including a few million headed our way at 300+ km/sec.

So what if we can't go really fast. Last time I'd checked, our moon and Venus were each really nearby.

 




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