when u look up at the stars in the sky do u ever wonder if there are other life forms?
922080
Yea i Wonder, but as a man of science I have to consider evidence.\nThere is no evidence of ET life.
573669
Oh absolutely.  In fact, I have long toyed with the idea that Earth is 1st grade - 2nd grade is on Mars maybe and it's about 2 civilized planets near one another, 3rd deals with multiple solar systems, etc.\n\nI think it is very hard to look up into the night sky and see all those stars and planets out there and think that we are the only ones.  It just doesn't make sense.  Why would anyone create such a vast universe just to look pretty in the night sky?
476356
I do believe in them as if they didn't exist, why would NASA do so much research trying to find other forms of life in the Solar System
532339
all the time! Usually i see just the light reflectiong off their wings cause they move so fast! It's a good sign if you do see them. kinda lucky.
1091585
You've awakened the starry-eyed dreamer in me at this late hour!  I should be sleeping, but can't resist your question.\n\nHow many other planets, do I think?  Actually my number is a lot higher than millions!  In fact, on this subject you get into numbers so large that most of us humans cannot relate them to anything in our experience.  So, sadly, I doubt we can appreciate the grandeur of the universe.  But let me try...\n\nOne fairly recent estimate says there are 70 sextillion *visible stars* in range of modern telescopes (70,000 million million million).\n\nTo help put that in perspective, I'll use a rather old but useful analogy.  Imagine scooping up a big handful of sand at the beach. Try counting the grains of sand.  You'll give up, most likely, in seconds, assuming you even bother to try.  Now look all around you on the beach, and think about *that* number.  Now think about all the grains of sand on *all the world's* beaches... and deserts.  Now multiply that total number by ten, and you get approximately the number above -- of stars in the *known* universe.  The stars not visible to us by even our most powerful telescopes may equal the visible figure -- or be multiples of it.  Mind-boggling, no?\n\nSo to your planet question:  One next has to wonder how many of those stars are actually a sun to one or more planets (hey, I just noticed that was your wording, too; I like it).  Does every star have at least one planet revolving about it?  \n\nWell let's just be very conservative and say that there are only 70 sextillion stars in the *entire* (not just known) universe.  Let's further say that only one tenth of those stars (7 sextillion) have a planet orbiting them.  If we assume merely one planet per sun, then there must be at least 7 sextillion planets in the universe.  Using our sand analogy, that's a planet per grain of sand on all the world's beaches and deserts!\n\nAnyone who believes that is a reasonable number must surely wonder, "How could there NOT be living beings somewhere other than the earth?"  \n\nOf course not all planets will have life on them.  Earth may be the only body in our solar system, for example, which does harbor life, though at least one of Jupiter's moons is also a tantalizing possibility.\n\nIf only one out of a *thousand* of those planets are earth-like -- in the sense that they are rocky, not gaseous, and contain liquid water -- there may be 7 quintillion earth-like planets in the universe.  That's 7,000 thousand trillion.  I've been very careful, but if my math or estimates are off by even a factor of a *billion* there could be 7,000 million earth-like planets in the universe, a figure I think is extremely low.\n\nThese figures seems to jibe fairly well with an estimate of the number of earth-like planets in our galaxy alone, found at space.com (the bottom link in my sources) -- 30 billion, from a 2002 article.\n\nMy personal belief, based on numbers such as this, and on the likelihood that any planet supporting life may contain (extremely conservatively!) a thousand species...  is that there are *billions* of intelligent species in the universe outside the earth.\n\nSince you were wise to point out that we reside in the Milky Way galaxy, which is only one of perhaps billions of galaxies, you might be fascinated by the Hubble photo in the references, below.  I liked it so much, myself, that I made it my new desktop wallpaper.\n\nFinally, on the specific subject of life, there is a well-known method of estimating the number of intelligent, communicating civilizations, called the Drake Equation.  In my references you can see how it works to condense all the possible stars down by multiple factors, leaving the fraction which we may be able to communicate with, or at least hear from!  \n\nHappy dreaming (for me, too), and I hope you are as inspired by all this as I am.   :-)
229113
Earth is great, but some of us are very curious about what lies out there.
480373
stars, planets, comets, meteors
484105
Yes I do. Think of how big we can honestly say we know that space is, then think a million times that size. There are probably millions of different universes out there.
217359
Yes, I fully believe there is life on other planets.  What it took to create life on Earth was not favored to happen.  The odds that Earth would hold any life at all are too small to comprehend.  But we do not know how large the universe is.  We do know that there are trillions of planets, trillions of galaxies, trillions of stars.  The odds that there is not a speck of life on any of those planets is also extremely small.\n\nI must admit that I have seen a UFO, which occurred last year.  I was driving my friends home from a party and I happen to look in the sky to see a bright white diamond-shaped object.  There were four individual diamond lights that made up the overall shape.  I was astounded, and I knew it was not anything that the United States had admitted to having.  I could name every military jet, helicopter, blimp, and passanger aircraft that I see, but I could not for the life of me figure out what it was.  I immediately turned around and drove to follow it.  Within five-ten seconds, the craft had flown so fast that the lights had disappeared (I watched it the entire time).  I'm not saying it was extra-terrestrial, but it was a UFO.  I live in Cleveland, by the way.
295842
I haven't seen an actual alien but I did one time see something pretty strange.  It was a fourth of July and we were at my uncles house.  All of us were outside in the back yard watching the firework show that was going on in the city.  My uncle looked up at the stars and saw what looked like three stars that formed a triangle.  They were unusually bright.  He pointed it out to everyone and we were all looking at them when suddenly they zipped off in opposite directions.  It was the strangest thing.  All of us just kinda looked at each other and said, "Okay" and never spoke of it again.
779521
I love the sky because when you look up and see how infinite it is, it puts the world in perspective as to how small we are compared to the grand scheme of things.\n And its so beautiful.
650511
None, they up in the Sky, best seen at night. The Earth does revolve around a Big Star that can actually be seen in the day and not night. Make for a good Word Play/Riddle question. ;-D
220036
I think youd see a new planet ;)
82957
Maybe. It seems that in a universe filled with billions of galaxies, each with billions of stars, each with a potential to have a planet with life around it, that at least a few other planets would have to have life. It is not reasonable to suppose this is the only one where this ever happened. \n\nHowever, you asked about "creatures like humans". This is possible, but no where near as likely as there simply being "life" on other planets. The forces of natural selection ("evolution") can develop life in a myriad of possible shapes, and there is no guarantee that human-like lifeforms will evolve anywhere else. By some points of view, it is virtually impossible since a great many events happened over billions of years that resulted in us looking like we do. There might be life out there, and even intelligent life, but it is probably very different from us. \n\nHowever, another way to look at it finds the possibility that there is life like humans out there. Think about this: how many ways are there to get around: swimming, crawling, brachiating (swinging from trees), flying, walking. Maybe there are a few more that we don't see on Earth. Legs are one of the best ways of getting around, so it seems likely that, if there are many different worlds with life, a large proportion of those worlds have creatures with legs. This same logic applies to arms and hands--how many effective ways are there for manipulation of objects? Tentacles, cilia-like graspers, lobster claws, hands, and probably more. Still, something like hands at the end of flexible or jointed extensions like arms is a very good means of allowing a creature to grab things and shape them, so it seems likely that something hand-like will also appear. And then there are the obvious advantages of having the head on top of the body, for standing upright, for having two eyes set horizontally, etc... \n\nWhat I am getting at here is that there might be a million million ways that lifeforms can be shaped, but perhaps there are only a limited number of forms capable of inventing and building cities or ships or plows etc... Since the ability to create these things have such obvious advantages, life might often be "channeled" by the force of natural selection into the forms that allow technology, and therefore a human-like form might be seen more than just here on Earth.
912860
I highly doubt that there is intelligent life in our solar system there might be organisms on other planets like Mars. But there IS life some where out there. The Earth is infinately small compared to the the universe because the universe is forever expanding. There is no telling how many trillions and trillions of planets have intelligent life roaming around wondering if there is life on other planets just like we are.
310445
i believe in ufo s.  there must be other life in the universe. more advanced than us. probably watching us now destroying our own planet. i have read accounts of pilots in world war two .ufo s flying near planes just watching the pilots and observing us.
430419
Have you ever looked at the sky and seen a shooting star?\n\nThese are meteors burning up as the enter the atmosphere.  Is this what you are talking about?