· Does life exist elsewhere? How many of those stars are likely to have habitable planets?

Answer 1

The chances are very high.There are billions of stars in our galaxy alone not to mention other galaxies. If only a thousandth of those stars had planets around them and only a thousandth of those planets have the right conditions for life then there would still be millions of viable planets.
What I can't accept is aliens visiting earth.For these reasons:
1) None of the planets in our solar system can support life so we must go to the nearest star..proxima centauri for our first chance.This is 4.2 light years away so even at the speed of light (unachievable) it would take them over 4 years to get here. From a star in the middle of our galaxy it would take 30,000 years at the speed of light (8 minutes from our sun).
2) If you were an alien on a far away planet ,our sun would only be a small unsignificant star to you. Would you think..."Oh, lets go for a trip...that little star there...the third planet along...let's see if there's anything there it will only take us a few years."...I don't think so.

Answer 2

Drake's equation,

(N=R* x fp x ne x fl x fi x fc x L

N is the number of civilizations with which are able to communicate

while:

R* -average rate of star formation
fp -fraction of those stars that have planets
ne -average number of planets that can potentially support life per star that has planets
fl -fraction of the above that actually harbors life
fi -fraction of the above that developed intelligent life
fc -fraction of civilizations that develop a technology that gives detectable signs of their existence
L -length of time such civilizations release detectable signals into space.)

is the nearest hypothetical equation we could get. Although most of the parameters are admittedly not easily -or even possibly- observed, it somehow serves its purpose.

now about the large distances the 'extraterrestrials' would have supposed to travel to arrive here, on earth, could be shortened by space-time warp or by the hypothetical 'wormholes' -a sort of shortcut through space-time. It sounds ridiculous, but how ridiculous did Copernicus sound when he claimed that the earth was round? Or when Einstein pubished his Special theory of relativity a little more than a century back?

There have been a lot of proposals and ideas regarding how the 'extraterrestrials' would have explored space and visited our planet. We are just starting to understand our own earth and we know very little about our universe, so there's always place for speculation.

Answer 3

it seem that planets circle almost every star, so it is fair to assume that the probability of a planet, of the right size, at the right distance from a star is significant, since there are so many stars, there must be many planets that have the right temperature, gravity and atmosphere.
but a common rule for universal life is yet unavailable, we only know the rules for life on earth, but must these be universal. we need more data.

Answer 4

Life certain exist somewhere in the infinite space. Where the Lord and His AngeLs Dwel. When Jesus was caught up to Heaven , He said to His disciples," I am going to prepare a place in the heavens for you and when I finish, I shall come and take you there." So there is a place in Heaven,The Bible says in Revelation that getting to the end of this planet earth, A New world ( planet) will descend towards the earth and the belivers of Christ Jesus shall ascend into it.

And the earth shall be distroyed forever. It cannot be inhabitable anymore.Science also proved that the earth and the sun will not exist forever.

Answer 5

Not likely that the stars are habitable planets as they are usually burned out as we look at seeing as we are so far away.

I do however believe that some other planets have to habitable planets because i don't think we are the onle ones

Answer 6

sturdy lad Arthur,its the two particular or no,impeccable good judgment.If we evaluate that the large bang grow to be not initiated via a god however the reality that the universe is composed of matter and anti-matter and that earlier the large bang time did not exist so god did not exist so we are in a position to speculate that some the place throughout this massive increasing and at present turning out to be universe that lifestyles ought to evolve in an identical way as lifestyles stepped forward on earth.all the climate the place in place right here so we've been fortunate to outlive as a race.regrettably,the question approximately our survival has not something to do now with evolution yet with the insanity of non secular zealots,idiots with nuclear ability,the fools who sucked this planet dry and the chaos this is the universe.

Answer 7

The first extra solar planet system was discovered in the year 1995 by Debra Fischer.Since then 20 extra solar planets were found.They have estimated that one of every 10 stars in our galaxy may have planets moving around it.Therefore it is more likely that life may exist on one of these planets.Scientists suspect life on one of jupiter's moon Europa as they think that it may have a liquid ocean beneath it's frozen crust.God is always great.He has every thing so wondrous beyond the skies.Astronomer James Jeans wordings reads as follows-If you put three grains of sand in a cathedral, you will find that the cathedral if more closely packed than the stars are in the universe.This sounds quite interesting,right?If you are as fascinated as me about the outer world and friends out there you can connect your computer to listen to signals from extra terrestials.I have got a software on my pc to listen to signals from far out space.But alas!all the signals from this pc are from meteors and earthlings.But what!Your computer may be the first to listen to exta terrestrials.For more information visit www.seti-inst.edu

Answer 8

Since there are a large number of stars and some of them are similar to sun in size and radiation etc., it is probable that there could be some systems with planetary configuration like our own and in the right conditions, life will evolve. The numbers are difficult to arrive at with present knowledge but already exoplanets with mass similar to earth and even water have been discovered.

Answer 9

There is no other life in this solar system. If you can get hold of the book "Is there a creater who cares about you?" published by Jehovah's Witness you will find there is a chapter in there that proves that no other planets are habitable.

Answer 10

We are a very Arrogant ad selfish people if we think that we are the ONLY living lifeforms.
You see when you look up at them stars at night, you see millians dont you. Like not just a few, MILLIANS!!
well each one of those starts is a sun just like ours. And orbiting one of those suns must be a planet that has the same heat/water conditions as oursl. therefr sutibal for life...
The universe is biger than you could ever ever ever even begin to imagin.