Scientists estimate around 50 billion planets in our galaxy....vol. we cant be alone

Originally Posted by Its That Dude

Originally Posted by SHUGES

Originally Posted by NavyBoy24


QFMFT


I have been thinking like this all my life. Like seriously why do they believe other forms of life need the same natural sources as us in order to survive?
Yep!

Scientists have never ruled out the possibility of different lifeforms, so I don't where you guys getting that idea from??
The news here is that we have a more accurate estimate of how many planets there are and how many that can be inhabited in our galaxy based simply on its distance from its "sun" in its solar system.  It's basically like how Venus is too hot to inhabit, Mars is too cold to inhabit, and Earth is the perfect temperature.

So far Kepler has found 1,235 candidate planets, with 54 in the Goldilocks zone, where life could possibly exist. Kepler's main mission is not to examine individual worlds, but give astronomers a sense of how many planets, especially potentially habitable ones, there are likely to be in our galaxy. They would use the one-four-hundredth of the night sky that Kepler is looking at and extrapolate from there.

Thanks for clearing this up for these guys.  I was going to respond but just sighed heavily. 
 
Maybe there's some planet out there that is endless paradise... 80 degrees constantly, endless beaches, warm clear water, and it's all free of human habitation 
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Maybe there's some planet out there that is endless paradise... 80 degrees constantly, endless beaches, warm clear water, and it's all free of human habitation 
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Life is going to be on that Mass Effect steez quite a few generations from now.



Method Man and Dirty gonna get replaced by Turians.
 
Life is going to be on that Mass Effect steez quite a few generations from now.



Method Man and Dirty gonna get replaced by Turians.
 
Damn @ that pic
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I need to get my Vanilla Sky on or the Q's need to descend and take me back with them.
 
Damn @ that pic
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I need to get my Vanilla Sky on or the Q's need to descend and take me back with them.
 
 
Rev Tyson speaks
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Skip to 1:40

Edit:

We only know of life that needs water; since all organisms on earth share the same DNA, it's completely possible that there is another way to code biological information (ie RNA, and stuff we can't even fathom). If life elsewhere needs methane or some other element, akin to our dependence on water, that "Goldilocks zone" changes, essentially making any planet possibly inhabitable to an adapted species.

50 billion planets in our galaxy alone * the billions of other galaxies that exist = some probability that the universe has some other form of life; it may be overflowing with aliens. It's also possible that there are just a few life forms in the universe, spread so far out on islands in the sea of space, unable to make contact with one another.
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Rev Tyson speaks
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Skip to 1:40

Edit:

We only know of life that needs water; since all organisms on earth share the same DNA, it's completely possible that there is another way to code biological information (ie RNA, and stuff we can't even fathom). If life elsewhere needs methane or some other element, akin to our dependence on water, that "Goldilocks zone" changes, essentially making any planet possibly inhabitable to an adapted species.

50 billion planets in our galaxy alone * the billions of other galaxies that exist = some probability that the universe has some other form of life; it may be overflowing with aliens. It's also possible that there are just a few life forms in the universe, spread so far out on islands in the sea of space, unable to make contact with one another.
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from the information i've seen, i still think the chances of intelligent life randomly evolving are much less than 1 in 50 billion. maybe if there were 50 trillion planets i'd be more inclined to believe there were aliens.
 
from the information i've seen, i still think the chances of intelligent life randomly evolving are much less than 1 in 50 billion. maybe if there were 50 trillion planets i'd be more inclined to believe there were aliens.
 
Originally Posted by DT43

from the information i've seen, i still think the chances of intelligent life randomly evolving are much less than 1 in 50 billion. maybe if there were 50 trillion planets i'd be more inclined to believe there were aliens.

There are reportedly 50 billion planets in the Milky Way galaxy.  There are hundreds of billions of other galaxies out there.

"1999 the Hubble Space Telescope estimated that there were 125 billion galaxies" 
 
Originally Posted by DT43

from the information i've seen, i still think the chances of intelligent life randomly evolving are much less than 1 in 50 billion. maybe if there were 50 trillion planets i'd be more inclined to believe there were aliens.

There are reportedly 50 billion planets in the Milky Way galaxy.  There are hundreds of billions of other galaxies out there.

"1999 the Hubble Space Telescope estimated that there were 125 billion galaxies" 
 
Originally Posted by Jking0821

Originally Posted by DT43

from the information i've seen, i still think the chances of intelligent life randomly evolving are much less than 1 in 50 billion. maybe if there were 50 trillion planets i'd be more inclined to believe there were aliens.

There are reportedly 50 billion planets in the Milky Way galaxy.  There are hundreds of billions of other galaxies out there.

"1999 the Hubble Space Telescope estimated that there were
125 billion galaxies" 

And we're looking at life from a 3D perspective, not even counting the higher dimensions. There are "aliens" that walk around us everyday who are able to see us but not able to be seen by us.

A thought to ponder:

We have only just begun to understand dimensions, but from our point of view life MUST exist in the "goldilocks" zone, right? Well what if life in the higher dimensions needs different conditions in order to exist. What if each planet holds the right conditions for life to exist but on different dimensional levels. What if there are different "goldilocks zones" for each dimension? Think about that...

We really don't know %+** as a race in the grand scheme of things.
 
Originally Posted by Jking0821

Originally Posted by DT43

from the information i've seen, i still think the chances of intelligent life randomly evolving are much less than 1 in 50 billion. maybe if there were 50 trillion planets i'd be more inclined to believe there were aliens.

There are reportedly 50 billion planets in the Milky Way galaxy.  There are hundreds of billions of other galaxies out there.

"1999 the Hubble Space Telescope estimated that there were
125 billion galaxies" 

And we're looking at life from a 3D perspective, not even counting the higher dimensions. There are "aliens" that walk around us everyday who are able to see us but not able to be seen by us.

A thought to ponder:

We have only just begun to understand dimensions, but from our point of view life MUST exist in the "goldilocks" zone, right? Well what if life in the higher dimensions needs different conditions in order to exist. What if each planet holds the right conditions for life to exist but on different dimensional levels. What if there are different "goldilocks zones" for each dimension? Think about that...

We really don't know %+** as a race in the grand scheme of things.
 
Number Of Stars In The Universe Could Be 300 Sextillion,

 Triple The Amount Scientists Previously Thought: Study

s-STARS-large.jpg






WASHINGTON — The universe may glitter with far more stars than even Carl Sagan imagined when he rhapsodized about billions upon billions. A new study suggests there are a mind-blowing 300 sextillion of them, or three times as many as scientists previously calculated. That is a 3 followed by 23 zeros. Or 3 trillion times 100 billion.

The estimate, contained in a study published online Wednesday in the journal Nature, is based on findings that there are many more red dwarf stars – the most common star in the universe – than once thought.

But the research goes deeper than that. The study by Yale University astronomer Pieter van Dokkum and Harvard astrophysicist Charlie Conroy questions a key assumption that astronomers often use: that most galaxies have the same properties as our Milky Way. And that conclusion is deeply unsettling to astronomers who want a more orderly cosmos.

When scientists previously estimated the total number of stars, they assumed that all galaxies had the same ratio of dwarf stars as the Milky Way, which is spiral-shaped. Much of our understanding of the universe is based on observations made inside our own galaxy and then extrapolated to other galaxies.

But about one-third of the galaxies in the universe are elliptical, not spiral, and van Dokkum found they aren't really made up the same way as ours.

Using the Keck telescope in Hawaii, van Dokkum and a colleague gazed into eight distant, elliptical galaxies and looked at their hard-to-differentiate light signatures. The scientists calculated that elliptical galaxies have more red dwarf stars than predicted. A lot more.

"We're seeing 10 or 20 times more stars than we expected," van Dokkum said.

Generally scientists believe there are 100 billion to a trillion galaxies in the universe. And each galaxy – the Milky Way included – was thought to have 100 billion to a trillion stars. Sagan, the Cornell University scientist and best-selling author who was often impersonated by comedians as saying "billions and billions," usually said there were 100 billion galaxies, each with 100 billion stars.

Van Dokkum's work takes these numbers and adjusts them. That's because some of those galaxies – the elliptical ones, which account for about a third of all galaxies – have as many as 1 trillion to 10 trillion stars, not a measly 100 billion. When van Dokkum and Conroy crunched the incredibly big numbers, they found that it tripled the estimate of stars in the universe from 100 sextillion to 300 sextillion.

That's a huge number to grasp, even for astronomers who are used to dealing in light years and trillions, Conroy said.

"It's fun because it gets you thinking about these large numbers," Conroy said. Conroy looked up how many cells are in the average human body – 50 trillion or so – and multiplied that by the 6 billion people on Earth. And he came up with about 300 sextillion.

So the number of stars in the universe "is equal to all the cells in the humans on Earth – a kind of funny coincidence," Conroy said.

For the past month, astronomers have been buzzing about van Dokkum's findings, and many aren't too happy about them, said astronomer Richard Ellis of the California Institute of Technology.

Van Dokkum's paper challenges the assumption of "a more orderly universe" and gives credence to "the idea that the universe is more complicated than we think," Ellis said. "It's a little alarmist."

Ellis said it is too early to tell if van Dokkum is right or wrong, but his work is shaking up the field "like a cat among pigeons."

Van Dokkum agreed, saying, "Frankly, it's a big pain."

Ellis said the new study does make sense. Its biggest weakness might be the assumption that the chemical composition of dwarf stars is the same in elliptical galaxies as in the Milky Way. That might be wrong, Ellis said. If it is, it would mean there are only five times more red dwarf stars in elliptical galaxies than previously thought, instead of 10 or 20, van Dokkum said.

Slightly closer to home, at least in our own galaxy, another study also published in Nature looks at a single red dwarf star in a way that is a step forward in astronomers' search for life beyond Earth. A team led by a Harvard scientist was able to home in on the atmosphere of a planet circling that star, using the European Southern Observatory's Very Large Telescope in Chile.

The planet lives up to the word alien. The team reports that this giant planet's atmosphere is either dense with sizzling water vapor like a souped-up steam bath, or it is full of hazy, choking hydrogen and helium clouds with a slightly blue tint. The latter is more likely, say the researchers and others not involved in the study.

While scientists have been able to figure out the atmosphere of gas giants the size of Jupiter or bigger, this is a first for the type of planet called a super Earth – something with a mass 2 to 10 times Earth's. The planet is more comparable to Neptune and circles a star about 42 light years from Earth. A light year is nearly 6 trillion miles.

The planet is nowhere near livable – it's about 440 degrees (about 225 degrees Celsius). "You wouldn't want to be there. It would be unpleasant," said study co-author Eliza Kempton of the University of California Santa Clara.

But describing its atmosphere is a big step toward understanding potentially habitable planets outside our solar system, said study chief author Jacob Bean at the Harvard Smithsonian Center for Astrophysics.

Bean and Kempton looked at the light spectrum signature from the large planet as it passed in front of the dwarf star, and the result led to two possible conclusions: steam bath or haze.

The steam bath is the more interesting possibility because water is key to life, said outside scientist Alan Boss of the Carnegie Institution of Washington.

But an upcoming and still unpublished study by Kempton and Bryce Croll at the University of Toronto points more toward a hydrogen-helium atmosphere, several astronomers said.

http://www.huffingtonpost.com/2010/12/01/number-of-stars-in-universe_n_790563.html

___
 
Number Of Stars In The Universe Could Be 300 Sextillion,

 Triple The Amount Scientists Previously Thought: Study

s-STARS-large.jpg






WASHINGTON — The universe may glitter with far more stars than even Carl Sagan imagined when he rhapsodized about billions upon billions. A new study suggests there are a mind-blowing 300 sextillion of them, or three times as many as scientists previously calculated. That is a 3 followed by 23 zeros. Or 3 trillion times 100 billion.

The estimate, contained in a study published online Wednesday in the journal Nature, is based on findings that there are many more red dwarf stars – the most common star in the universe – than once thought.

But the research goes deeper than that. The study by Yale University astronomer Pieter van Dokkum and Harvard astrophysicist Charlie Conroy questions a key assumption that astronomers often use: that most galaxies have the same properties as our Milky Way. And that conclusion is deeply unsettling to astronomers who want a more orderly cosmos.

When scientists previously estimated the total number of stars, they assumed that all galaxies had the same ratio of dwarf stars as the Milky Way, which is spiral-shaped. Much of our understanding of the universe is based on observations made inside our own galaxy and then extrapolated to other galaxies.

But about one-third of the galaxies in the universe are elliptical, not spiral, and van Dokkum found they aren't really made up the same way as ours.

Using the Keck telescope in Hawaii, van Dokkum and a colleague gazed into eight distant, elliptical galaxies and looked at their hard-to-differentiate light signatures. The scientists calculated that elliptical galaxies have more red dwarf stars than predicted. A lot more.

"We're seeing 10 or 20 times more stars than we expected," van Dokkum said.

Generally scientists believe there are 100 billion to a trillion galaxies in the universe. And each galaxy – the Milky Way included – was thought to have 100 billion to a trillion stars. Sagan, the Cornell University scientist and best-selling author who was often impersonated by comedians as saying "billions and billions," usually said there were 100 billion galaxies, each with 100 billion stars.

Van Dokkum's work takes these numbers and adjusts them. That's because some of those galaxies – the elliptical ones, which account for about a third of all galaxies – have as many as 1 trillion to 10 trillion stars, not a measly 100 billion. When van Dokkum and Conroy crunched the incredibly big numbers, they found that it tripled the estimate of stars in the universe from 100 sextillion to 300 sextillion.

That's a huge number to grasp, even for astronomers who are used to dealing in light years and trillions, Conroy said.

"It's fun because it gets you thinking about these large numbers," Conroy said. Conroy looked up how many cells are in the average human body – 50 trillion or so – and multiplied that by the 6 billion people on Earth. And he came up with about 300 sextillion.

So the number of stars in the universe "is equal to all the cells in the humans on Earth – a kind of funny coincidence," Conroy said.

For the past month, astronomers have been buzzing about van Dokkum's findings, and many aren't too happy about them, said astronomer Richard Ellis of the California Institute of Technology.

Van Dokkum's paper challenges the assumption of "a more orderly universe" and gives credence to "the idea that the universe is more complicated than we think," Ellis said. "It's a little alarmist."

Ellis said it is too early to tell if van Dokkum is right or wrong, but his work is shaking up the field "like a cat among pigeons."

Van Dokkum agreed, saying, "Frankly, it's a big pain."

Ellis said the new study does make sense. Its biggest weakness might be the assumption that the chemical composition of dwarf stars is the same in elliptical galaxies as in the Milky Way. That might be wrong, Ellis said. If it is, it would mean there are only five times more red dwarf stars in elliptical galaxies than previously thought, instead of 10 or 20, van Dokkum said.

Slightly closer to home, at least in our own galaxy, another study also published in Nature looks at a single red dwarf star in a way that is a step forward in astronomers' search for life beyond Earth. A team led by a Harvard scientist was able to home in on the atmosphere of a planet circling that star, using the European Southern Observatory's Very Large Telescope in Chile.

The planet lives up to the word alien. The team reports that this giant planet's atmosphere is either dense with sizzling water vapor like a souped-up steam bath, or it is full of hazy, choking hydrogen and helium clouds with a slightly blue tint. The latter is more likely, say the researchers and others not involved in the study.

While scientists have been able to figure out the atmosphere of gas giants the size of Jupiter or bigger, this is a first for the type of planet called a super Earth – something with a mass 2 to 10 times Earth's. The planet is more comparable to Neptune and circles a star about 42 light years from Earth. A light year is nearly 6 trillion miles.

The planet is nowhere near livable – it's about 440 degrees (about 225 degrees Celsius). "You wouldn't want to be there. It would be unpleasant," said study co-author Eliza Kempton of the University of California Santa Clara.

But describing its atmosphere is a big step toward understanding potentially habitable planets outside our solar system, said study chief author Jacob Bean at the Harvard Smithsonian Center for Astrophysics.

Bean and Kempton looked at the light spectrum signature from the large planet as it passed in front of the dwarf star, and the result led to two possible conclusions: steam bath or haze.

The steam bath is the more interesting possibility because water is key to life, said outside scientist Alan Boss of the Carnegie Institution of Washington.

But an upcoming and still unpublished study by Kempton and Bryce Croll at the University of Toronto points more toward a hydrogen-helium atmosphere, several astronomers said.

http://www.huffingtonpost.com/2010/12/01/number-of-stars-in-universe_n_790563.html

___
 
Originally Posted by 4318MichaelJohnson4318

Originally Posted by GhengesK

you-were-born-too-soon-15269-1284379014-8.jpg

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There Has To Be Life Some Where Out There... The Universe Is Jus To Big For Us To Be Alone... If We (Human Beings) Happend Then It Can Happen Again Some Where Else...
 
Originally Posted by 4318MichaelJohnson4318

Originally Posted by GhengesK

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There Has To Be Life Some Where Out There... The Universe Is Jus To Big For Us To Be Alone... If We (Human Beings) Happend Then It Can Happen Again Some Where Else...
 
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