What % (Life)?

Question

Life, is highly unlikely. So just for my curiosity what are chances what the exsisting on other planets. % wise

Answer 1

There is a famous formula that was developed by astronomer Frank Drake for calculating the possibility of alien life. The Drake equation is N = R x fp x ne x fl x fi x fc x L

Thye explanation of this equation (taken from http://www.astro-tom.com/technical_data/alien_life.htm ) is as follows: R is the rate at which stars have been born in the Milky Way per year, fp is the fraction of these stars that have solar systems of planets, ne is the average number of "Earthlike" planets (potentially suitable for life) in the typical solar system, fl is the fraction of those planets on which life actually forms, fi is the fraction of life-bearing planets where biological evolution produces an intelligent species, fc is the fraction of intelligent species that become capable of interstellar radio communication, and L is the average lifetime of a communicating civilization in years.

So plug in whatever numbers you think are reasonable and run the equation. The most commonly used numbers result in about 10,000 civilizations in our galaxy. Of course we have not found a single one to date.

Answer 2

In 1961, radio astronomer Frank Drake presented an equation designed to estimate that number on the basis of seven assumptions. The current estimate for the number of stars in our galaxy that have intelligent life is roughly 1000. That's just for our own milky way galaxy. Remember that there are approximatly 100 billion other galaxys

Answer 3

Life is what God created he put some in heavens and the other type which is biological was given On earth with all sort of life structures,trees, grass animals etc....
The maintainance of life had to be all interrelated by synergism.That means that only earth could support biological life.
It is not scientifically possible to give how much of a %wise on what percent of life exist on other location. However the number of Angels that roam around in the Heavens would way outnumbers the numbers of Humans that ever lived on earth.

Answer 4

Of cource 50% either there is or there isn't. Hawking said that in the vastness of space it is somewhat selfish to think we are the only inhabbitance. But if the other inhabbitance were physical we almost certainly would have found something.

Answer 5

100%. We cannot be the only planet to sustain life. Other lifeforms do not necessarily breathe oxygen or survive on water or sunlight, but as the universe is so vast, we have just not discovered them yet.

Answer 6

The development of life was in fact inevitable, life is sure to exist in other parts of the universe.

Answer 7

2%

Answer 8

50/50,who really knows, although someone has just been on saying they spotted something in the sky over the UK.

Answer 9

100%..saying there is not life on other planets is like sitting locked inside a house and saying there is no one outside because you can't see them..billions of planets exist and all Astrologers will say almost half can sustain life.

Answer 10

It's either 0%, or 100%. Nothing in between.