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Earth-like Planets Are Right Next Door

exoplanets red dwarfs kepler

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#31    JesseCuster

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Posted 11 February 2013 - 07:17 PM

View Postpsyche101, on 11 February 2013 - 06:01 AM, said:

Around Proxima Centauri? I would not expect something to have a major head-start on us there because It is believed that the Centauri star system formed about the same time as our own Sun at 4.85 × 109 years.
Humans went from being stone-age hunter gatherers to being able to put a robotic exploration probe on Mars in a matter of some thousands of years.

That's barely a blink of the eye in astronomical terms.  All it takes is for intelligence to have developed every so slightly earlier or later on another planet for it to make us look either way less advanced or way more advanced than them.

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#32    psyche101

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Posted 12 February 2013 - 01:37 AM

View PostFrank Merton, on 11 February 2013 - 06:07 AM, said:

Well we wasted a few billion years; other systems may have evolved intelligence much more quickly.

I do not think they were wasted, we have no control over mass extinction, and surely a 3 star system would have a greater gravitational pull, and offer if anything more risk to life on surrounding planets. Not sure why anyone would be spared a Chicxulub event. We expect more of them yet ourselves.

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#33    psyche101

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Posted 12 February 2013 - 02:01 AM

View PostArchimedes, on 11 February 2013 - 07:17 PM, said:

Humans went from being stone-age hunter gatherers to being able to put a robotic exploration probe on Mars in a matter of some thousands of years.

That's barely a blink of the eye in astronomical terms.  All it takes is for intelligence to have developed every so slightly earlier or later on another planet for it to make us look either way less advanced or way more advanced than them.


Yes, but why? We are close enough to detect a signal, the Alpha System is dead. Being such a close system it has garnered a great deal of attention, but no result. Isn't Barnard's star considered a far better option? There is much objection to any life being possible around a Red Dwarf, I would not expect it to factor as a high possibility. Little light, dangerous flares, they seem to have more problems than our planet did. As such, it seems unlikely that life would develop more quickly under more difficult conditions. I think it does not hurt to apply some methodology to what we know?

Things are what they are. - Me Reality can't be debunked. That's the beauty of it. - Capeo 'If I have seen further it is by standing on the shoulders of giants.' - Sir Isaac Newton. "Let me repeat the lesson learned from the Sturrock scientific review panel: Pack up your old data and forget it. Ufology needs new data, new cases, new rigorous and scientific methodologies if it hopes ever to get out of its pit." Ed Stewart. Youtube is the last refuge of the ignorant and is more often used for disinformation than genuine research.  There is a REASON for PEER REVIEW... - Chrlzs. Nothing is inexplicable, just unexplained. - Sir Wearer of Hats.


#34    psyche101

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Posted 12 February 2013 - 02:03 AM

View Postbison, on 11 February 2013 - 04:14 PM, said:

Not all red dwarf stars are prone to flaring.

Proxima Centauri is though.

LINK

Things are what they are. - Me Reality can't be debunked. That's the beauty of it. - Capeo 'If I have seen further it is by standing on the shoulders of giants.' - Sir Isaac Newton. "Let me repeat the lesson learned from the Sturrock scientific review panel: Pack up your old data and forget it. Ufology needs new data, new cases, new rigorous and scientific methodologies if it hopes ever to get out of its pit." Ed Stewart. Youtube is the last refuge of the ignorant and is more often used for disinformation than genuine research.  There is a REASON for PEER REVIEW... - Chrlzs. Nothing is inexplicable, just unexplained. - Sir Wearer of Hats.


#35    psyche101

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Posted 12 February 2013 - 02:36 AM

View PostZeta Reticulum, on 11 February 2013 - 08:19 AM, said:

Agreed, and if Troodon wasnt wiped out in the dinosaur extinction 65 millions years ago, then our planet may well now have an intelligent grey skinned reptillian
race running it. And with 65 millions years jump on us, they couldve been into intestellar travel for millions of years already.

Darren Naish does not think Dale Russell was on the mark with his Dinosauroid.


Quote

With this in mind, my feeling on dinosauroids and intelligent theropods and so on is that – if they were to evolve – they wouldn’t look like scaly, or feathery, people, but would instead be far more normal from the theropod point of view. A horizontal body posture, not a vertical one. Digitigrade feet, not plantigrade ones. A long tail, not a reduced one. The main theme here might be familiar to regular blog readers given that I’ve covered much of this before in a post on ground hornbills. While they aren’t particularly big-brained, ground hornbills can be regarded as avian pseudo-hominids, their evolution paralleling our own in several respects. The concluding paragraph of my ground hornbill post was…

No, post-Cretaceous maniraptorans wouldn’t end up looking like scaly tridactyl plantigrade humanoids with erect tailless bodies. They would be decked out with feathers and brightly coloured skin ornaments; have nice normal horizontal bodies and digitigrade feet; long, hard, powerful jaws; stride around on the savannah kicking the **** out of little mammals; and in the evenings they would stand together in the trees, booming out a duet of du du du-du, a deep noise that would reverberate for miles around.

LINK

He makes the argument that the species would retain many of it's features, and would end up looking a little something like this perhaps:

Posted Image



But I personally find the Conway Morris argument more plausible than either.

Things are what they are. - Me Reality can't be debunked. That's the beauty of it. - Capeo 'If I have seen further it is by standing on the shoulders of giants.' - Sir Isaac Newton. "Let me repeat the lesson learned from the Sturrock scientific review panel: Pack up your old data and forget it. Ufology needs new data, new cases, new rigorous and scientific methodologies if it hopes ever to get out of its pit." Ed Stewart. Youtube is the last refuge of the ignorant and is more often used for disinformation than genuine research.  There is a REASON for PEER REVIEW... - Chrlzs. Nothing is inexplicable, just unexplained. - Sir Wearer of Hats.






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