The answer of that thanks to the Drakes Equation
2006-07-21 07:20:01
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answer #1
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answered by Angel Mass 3
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Millions or billions...after all, you did include the whole series of galaxies in your question.
Now let's not include all similar planets. Let's assume by the question, you mean "Earth-like habitable planets". The number would of course be fewer due to a more accurate comparison. After all, in many ways Jupiter compares to the Earth, (although not inhabitable by us without special accommodations for breathing and the cold).
So there we are. An exact number is hard to track down without further exploration and study. You want an estimate? 19,456,225 similar and possibly habitable planets like our Earth. Some have two suns and several moons.
This is of course an estimate over 50 known or suspected galaxies, of which there are actually hundreds!
2006-07-21 07:34:05
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answer #2
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answered by Sandman44 5
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There can be billions of them. We are just in one of them. The reason may be that Earth is placed in such a position i.e the distance between the sun and earth might be the optimum distance for survival or something else. Even the size of the star and the planet can play an important role.
Who knows, may be some alien or even a human can be thinking of the same question in some other earth like planet.
2006-07-21 07:31:17
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answer #3
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answered by Karthik Babu 1
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considering there are quintillions of stars (or over 1,000,000,000,000,000,000) the possiblilty of having 1 with similair conditions is great. I would say about 40 percent have similar planets, while 10 percent have liquid water oceans, and even fewer have life. An analogy for the chance of life happening on a planet is like shooting a dime off of someones head from 50 yards away with a shotgun. since there are so many planets, this leaves a pretty decent chance of life in other places. that life could only be beginning like bacteria or be way more advanced than us, or pretty similar to us.
sorry i went off on a tangent, i figured that this was where you were heading. if not , then yea there are probably plenty of habitable planets for us to use when earth gets destroyed, the trick is finding it, and finding a way to get there.
2006-07-21 07:26:27
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answer #4
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answered by sexydp 3
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Even if there is only one planet with life for every whole galaxy in the known universe that still means there are millions and millions of planets with life.
But they would all be soooooo far away from each other that we would probably never come in contact with any of them. When was the last time we were able to travel to another galaxy?
2006-07-21 09:24:10
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answer #5
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answered by Cerebrus 3
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The person who answered with the Drake equation is the closest. Scientist now say most stars like the sun have planetary systems BUT the trick to "earth like" is DISTANCE. Earth fits closely to an area around the sun where LIFE can evolve. Note that there are 8 other planets with no life (we can detect).
2006-07-21 07:29:41
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answer #6
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answered by Matt G 2
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No Of Hairs On Yr Head x 2 Billion. Countless In Other Words
2006-07-21 07:55:54
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answer #7
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answered by savvy s 2
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27
2006-07-21 07:20:11
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answer #8
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answered by zoomjet 7
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I guess earth looks blue coz of its atmosphere....the layer of air which surronds earth ...some like the way mars looks red and hence called red planet.
No one really can guess how many planets like earth are out there, coz scientists cannot confirm this. It will take lots of years before we can have technology which allow us travel so fast that we can go out there and find out ourselves.
2006-07-21 07:20:12
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answer #9
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answered by Chika 1
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great impacts on earth via extensive asteroids toss organic and organic fabric lower back into area. What if the earth or different life-bearing planets, have been created to grant life to something of the universe? that ought to shift the purpose of life from the destiny of humanity to the destiny of life-bearing planets. life is the main suitable success of the universe no count if on earth or someplace else in area. Evolution has shown itself to be genuine and energetic in life and interior the formation of planets. If life evolves on earth then it somewhat is a competent guess that that is got here upon on yet another planet. All life has purpose and all life has a place interior the cosmos.
2016-12-10 11:44:04
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answer #10
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answered by ? 4
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There could be millions and billions, which might have different life forms - with the development of technology, only time would solve this question - may be our children's children might be lucky enough to know
2006-07-21 07:23:49
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answer #11
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answered by R G 5
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