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Posted

One thousand exoplanets but still no twin for Earth

 

Any day now, the thousandth exoplanet discovery will be logged, but Earth's twin is not among them. Where are the habitable planets and why can't astronomers find them?

 

Exoplanet-Kepler-20-e-008.jpg

Exoplanet Kepler-20 e was the first rocky planet smaller than Earth discovered orbiting another star. It is too hot to be habitable. Illustration: Nature

 

Imagine Earth's twin planet: shining blue with oceans and laced with white clouds. It orbits a star that is virtually indistinguishable from the sun, and is

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Posted

There are no more like Earth, becuase God only made one.

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Posted

Just a few years ago we had no evidence of how common planetary systems were.

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Posted

 

Where are the habitable planets and why can't astronomers find them?

 

I personally believe that life is rare out in the universe. 

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Posted

There are no more like Earth, becuase God only made one.

God didn't make the Earth. Earth was made from accreted rocky debris, which was held together by gravity. 

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Posted

It's been proven that most stars are solar systems, and there are estimated to be 200-400 billion stars in the galaxy. Our solar system has 8 planets, and other than Earth there's one planet that may have had life, and a moon that may potentially support life.
 
Also, it's very difficult for us to detect most smaller planets, and even more difficult to detect water on them. Most planets we've found are just the massive ones. Huge advances have been made in the last decade, and eventually we will be able to detect smaller planets, and image them with telescopes. Right now though, it's rare.
 

There are likely Earth-like planets out in space, but astronomers must find one within the habitable zone

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Posted

I personally believe that life is rare out in the universe.

You are very likely very wrong. Molecular clouds from which stars and planetary systems form are positively loaded with organic compounds, as are carbonaceous chondrite meteorites. Seed these onto a warm, wet environment (under the surface of an icy moon o RR planet etc) and all matter of things happen.

Also look up panspermia.

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Posted

You are very likely very wrong. 

 

Probably. It wouldn't be the first time. It's more of a feeling than intellectual knowledge. Until we can prove otherwise it's all just opinion anyway.

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Posted

God didn't make the Earth. Earth was made from accreted rocky debris, which was held together by gravity. 

 

and we got randomly created as humans, NOT!

 

once someone could make new 'biological' creature intelligent life forms then i would throw god/religion out of the windows  until then .....

 

 

...

on the side line 

 

i do believe they are other creatures in the that vast universe. 

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Posted

and we got randomly created as humans, NOT!

Try reading some biology textbooks. They will blow your mind.

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Posted

The assumption that life needs or even prefers earth like planets is about as arrogant as this

 

There are no more like Earth, becuase God only made one.

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Posted

The assumption that life needs or even prefers earth like planets is about as arrogant as this

Agreed, we have already seen microbial life living in the depths of the earth, organisms living on volcanic lava, and in super freezing temperatures.

 

Most of the life on Earth needs an Earth-like planet to live outside of Earth, life itself does not.

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Posted

There are no more like Earth, becuase God only made one.

ohhh i get it. good one.

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Posted

Even if there is lots of life out there, it's probably so scattered that it's very difficult to find. That said, our discovery of space is at its infancy, so it's much too early to draw conclusions at this point.

 

There are no more like Earth, becuase God only made one.

What makes you think so (assuming this isn't sarcasm)?

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Posted

hmmm i was going make a really sarcastic comment but i dont want to risk getting banned again lol

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Posted

Go to a beech and grab a hand full of sand then look very closely and see how many specs there are and just how many totally different types your hand contains.Some are organic others are purely mineral yet they were all created oblivious to each others presence and yet they still coexist in the same environment.Our little planet could be at one end of the beech and our twin right over the other side of the rock pond.Searching nearby is like spitting in the ocean and expecting it to make a difference.

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Posted

as of today we  passed officialy the 1000 exoplanets 

http://exoplanet.eu/catalog/

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Posted

The assumption that life needs or even prefers earth like planets is about as arrogant as this

Agreed, we have already seen microbial life living in the depths of the earth, organisms living on volcanic lava, and in super freezing temperatures.

 

Most of the life on Earth needs an Earth-like planet to live outside of Earth, life itself does not.

Life does live in extreme conditions, and there's probably life on planets that we'd never imagine that life could exist on, but...

This isn't about finding life on an exoplanet, because we can't. We're not going to any planets outside of our solar system for quite a long time. Many astronomers and exobiologists believe that life exists anywhere and everywhere it can, and we know without a doubt that it thrives in Earth-like conditions. To many, finding an Earth-like planet is equivalent to finding life. And, for at least most of us, that's probably the best we're ever going to get.

 

It's been proven in many ways that life almost certainly exists outside of the solar system, and an earth-like planet is basically the last missing clue until/if we find life elsewhere in our solar system, until/if we can go to another star, or until/if we're visited by aliens or intercept their communications from hundreds or thousands of years ago. Anyway you look at it, earth-like planets are bound to exist and we're bound to find them, everything else is a huge maybe.

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Posted

And that nicely brings up the subject of just what life we are actually seeking, after all being carbon based life forms are we limiting ourselves to this small perceptual basis.There may be life in a way on such planets as the Sun with its extreme high temperatures or Mars with its extreme low temperatures.In such cases the "life forms" may be unrecognizable to our limited understanding of science and even if they were somewhat similar to Earth bound life the lander onboard cameras would not pick them up due to the way they scan to compose images.

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Posted

While finding a new Earth will be without precedent and absolutely exciting, such planet will be of no use to us because it will be too far to be reached in a human lifespan.

 

So yeah I'm more interested in actually finding an alien form of life.

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Posted

one thousand... we talking about billions in one galaxy and they are disappointed because the first thousand was a fail...

mkay

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Posted

One thousand exoplanets...

 

This is like a drop in the ocean.

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Posted

You have to remember too that not all life forms even of the same carbon based type will be at the same stage of their life cycle.Some may be at the amebic level quite happily living in a pool whilst others may be more advanced and at a transitional stage of evolution also what divergence happened to Apes on Earth may happen to say Lizards on another.

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Posted

While finding a new Earth will be without precedent and absolutely exciting, such planet will be of no use to us because it will be too far to be reached in a human lifespan.

 

Not necessary, achieving the speed of light opens the window to travel to the edge of our own galaxy withing 70 years.

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Posted

Not necessary, achieving the speed of light opens the window to travel to the edge of our own galaxy withing 70 years.

If an object with any mass were to achieve the speed of light, its mass would become infinite, which seems impossible in its own right. But assuming that the object did achieve infinite mass during light-speed travel, to keep moving, the power behind its thrust or push would need to be infinite as well. No force in the known universe can achieve this, short of space-time itself.

 

So I rather see wormholes working than this.

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