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Title: Found! Potentially Earth-Like Planet at Proxima Centauri Is Closest Ever
Source: Space.com
URL Source: https://www.space.com/33834-discovery-of-planet-proxima-b.html
Published: Aug 24, 2016
Author: Mike Wall
Post Date: 2017-08-26 13:27:40 by farmfriend
Keywords: None
Views: 516
Comments: 19

Astronomers have discovered a roughly Earth-size alien world around Proxima Centauri, which lies just 4.2 light-years from our own solar system. What's even more exciting, study team members said, is that the planet, known as Proxima b, circles in the star's "habitable zone" — the range of distances at which liquid water could be stable on a world's surface.

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Poster Comment:

Article is a year old but still cool!

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Begin Trace Mode for Comment # 18.

#1. To: farmfriend (#0)

Long after I die we may find out if life could exist on that planet.

DWornock  posted on  2017-08-26   13:55:26 ET  Reply   Untrace   Trace   Private Reply  

Long after I die we may find out if life could exist on that planet.

I suspect that some methods will be devised to detect life on extra-solar worlds, and that we may see science claim life exists on other worlds within the next 5-10 years, if indeed any exist with reasonably abundant life on it.

I am of the opinion that life does indeed exist elsewhere in the universe. How common it may be, I have no idea.

Pinguinite  posted on  2017-08-26   14:10:04 ET  Reply   Untrace   Trace   Private Reply  

I am of the opinion that life does indeed exist elsewhere in the universe. How common it may be, I have no idea.

I too suspect life is common. Advanced life is the real question.

farmfriend  posted on  2017-08-26   14:19:31 ET  Reply   Untrace   Trace   Private Reply  

I too suspect life is common. Advanced life is the real question.

I suspect life may only exist on earth. Our scientists can't create life so the probibility that nature can create it may be infinitesimal. Unless we happen to be first, certainly there is no other intelligent life as we define it in our galaxy or else, intelligent life always destroyed itself before becoming capable of traveling to the stars. Considering how the USA wants to make war on Russia, a war that will go nuclear, that is something we may do.

In any event, once intelligent life is capable of star travel, something we should be able to do within the next 100 (certainly the next 1,000) years, colonization of the galaxy may take as little as 100,000 years and certainly less than 1,000,000 years. Considering the galaxy is billions of years old, the odds that we would be less than one million years behind another intelligent life on another start system is less than 1%.

Therefore, the fact that our galaxy hasn't already been colonized implies other intelligent life does not exist. Certainly they would not have overlooked a rich prize like earth.

DWornock  posted on  2017-08-27   15:00:33 ET  Reply   Untrace   Trace   Private Reply  

I suspect life may only exist on earth. Our scientists can't create life so the probibility that nature can create it may be infinitesimal.

That, we do not know. For all we know, new microbial life forms may be springing into existence somewhere on earth daily, and if so, any discovered would be erroneously presumed to be related to some preexisting microbial life.

In any event, once intelligent life is capable of star travel, something we should be able to do within the next 100 (certainly the next 1,000) years, colonization of the galaxy may take as little as 100,000 years and certainly less than 1,000,000 years. Considering the galaxy is billions of years old, the odds that we would be less than one million years behind another intelligent life on another start system is less than 1%.

A theorem I've heard before, and not an unsound one. Though it does presume that faster than light travel is obtainable with sufficiently advanced tech, which is not known. If it is not possible, then colonization of the galaxy may take far longer than 1 million years, as the galaxy is, I think, about 100,000 light years in diameter.

And while it may show intelligent life does not exist in our galaxy, it does not mean it doesn't exist in one of the billions of others. The universe is, of course, a big place.

If faster than light travel is not possible, then humans leaving this solar system may not happen until it absolutely has to.

Pinguinite  posted on  2017-08-28   2:51:29 ET  Reply   Untrace   Trace   Private Reply  

#19. To: Pinguinite (#18)

I don't believe speeds greater than the speed of light is possible. However, already there is discussion of the use of micro or nano-sized spacecraft that can travel close to the spead of light (perhaps 70%). They would be inexpensive so we might send out thousands to every star within a thousand light years. If a planet that we could live on is found, we would send a regular spaceship traveling at 1/3rd the speed of with dozens of people or a few people and many frozen embryos to be raised in artifical wombs.

In 10,000 years those planets would be sufficiently populated and developed, and in turn would send out nano-spacecraft. At that rate, if the galaxy is 100,000 light years across, it might take longer than 1 million years, but not a lot longer.

DWornock  posted on  2017-08-28 15:35:03 ET  Reply   Untrace   Trace   Private Reply  

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