how many stars are there in the galaxy?
347409
6.225.148.2697.3654.158 million. If you dont believe me, count them by your self!!
1049105
Proof, so far there is none, however if you take into account that there are trillions of galaxies each with trillions of stars all of which may potentially have planets, then you have to consider that there is a good chance that there is at least one other planet out there with the potential for life.
606528
200 billion stars in the Milky Way.
604824
The astrobiology folks at NASA have calculated that there are between one and thirty billion habitable planets in our Milky Way Galaxy.  If our solar system is typical,  you can multiply that by about 10 to get total planets: between 10 and 300 billion.  \n\nSo where is everybody?
515664
Our galaxy the Milky Way contains about a hundred billion stars, there are billions of galaxies out there. I think man would be presumptious to the extreme if he believed he were the only intelligent life to exist in all of creation. I am sure with all the advances in technology, that within twenty years a signal will be picked up, that unmistakeably answers your question: We Are Not Alone!
973173
There are more stars than we can count.  Most of them have planets.   Most of those planets have moons.
556954
there are nine planets in the solar system. it is not know yet how many planets are there in the entire universe, because we just know about 3 galaxies (and still do not know about any planets in galaxies other than the milky way)
660305
space doesn't really have limits that we'll ever reach, but yeah there are MANY others planets and solar systems in our galaxy, let alon the other 51351351354 (to the 80 trillionth power) galaxies. it's infinite.
437476
I think given the magnitude of space: the galaxies already discovered, the hundred billion stars in each, the number of planets revolving about them. I find it inconceivable by pure chance alone that earth is the only body with life in the entire universe. To even think so I would feel to be the utmost presumptious conceit of man.\nI even feel that with the hundred billion stars in our galaxy, life in some shape or form must exist within our galaxy in several separate locations. How many life forms at our stage of existence or beyond is another matter entirely, with the knowledge we have now how many madmen does it take to send us all to oblivion, kingdom come or whatever. All this must be thrown into the equation.How many civilisations can survive and for how long? It is my belief though that within the next couple of decades, as our listening apparatus improves by leaps and bounds, that an unmistakeable signal will come, either intentional or not has no bearing on the matter, which will answer your question once and for all. The answer will be YES.\nThere was an unconfirmed signal on 15th August 1977 never repeated, that could have come from the Sagittarius region: i.e. toward the centre of our galaxy. You never know.
295233
there are as many as 200 billion galaxies in the observable universe
251053
There are ~200,000,000,000 stars in our galaxy. There are at least 80,000,000,000 galaxies in the universe, and reasonable estimates are from 80 billion to 400 billion. Estimates of the total number of stars in the universe that I've seen start around 3 followed by 16 zeroes, and a reasonable approximation would be in the neighborhood of 4.8 x 10^22.\n\nNow, we don't know of a single star that is known to NOT have planets; in fact, any planet within an order of magnitude or two of the mass of Earth is far too small for us to even detect, with the exception of those in very unusual systems, such as the one in the link below, which orbits a pulsar (it's also 1/5 the mass of pluto, but even if it were Earth-sized, a pulsar probably wouldn't be very conducive to life forming).\n\nWe also don't know exactly what conditions it takes to form life, how long those conditions need to last, or how long planets normally stay within that range of conditions.\n\nHowever, we can make some estimates.\nThe sun is a G-type star, and, although F-K type stars might be capable of supporting life (and such make up ~64% of the stars in the galaxy), we'll ignore everything but the 18.7% of stars which are G-type.\n\nFurther, let's say that only 1 in 10,000 G-type stars has a planet capable of forming life.\n\nNow, there is, on average, about 1 supernova per galaxy per century, so we'll have to eliminate some candidate stars on that; say about 99% of eligible stars do not form life as a result of radiation bombardment from nearby supernovae.\n\nThen, let's estimate that it takes 100,000,000 years for life to form, and the average planet only has 4,000,000,000 years of its lifespan where life can survive. Then, we have to figure out how many planets have life at any given time. The approximate lifespan of the sun is 10 billion years, so we'll figure that's about average for a G-type star.\n\nWe'll assume that no star has more than one habitable planet, and that no life colonizes any other planets. Then, we'll figure that only 1% of the planets which are still eligible actually have life.\n\nThat still leaves 3-4 planets currently inhabited, in our galaxy alone, including Earth. Multiply that by, oh, say, 1% of the minimum number of galaxies in the universe (just for the fun of it), and we still get nearly 3 billion currently inhabited planets.\n\nSo, I'd say that the answer is a pretty resounding "yes". Although most of them would be extinct long before we could concievably detect their existence, and even if not, they would be extinct for many millenia before we could communicate with them.
511482
The simple answer is we don't know..... we're still developping the technology to find them.\n\nOf the estimated 70 sextillion stars in the known universe, (that is 70 000 000 000 000 000 000 000, or 230 billion times as much as the 300 billion in our own Milky Way Galaxy), we've only found about 180 - 190 Planets outside our own Solar System so far... and that's only indirectly with only one seen so far (using an Ifra-Red telescope or something).
72985
There are hundreds of billions of stars in our galaxy. If just one in out of every million of those had planets, and if just one of every million of those had life, and if just one of every million of those had intelligent life, then there would be literally millions of intelligent civilizations out there, just in our galaxy alone. And there are many billions of galaxies. If it is just us, seems like an awful waste of space.
334761
Actually, there aren't as many solar systems as there are stars. Unlike our star, most stars are gravitationally bound to other stars, forming binary stars. So, most solar systems have multiple stars.
193124
In brief, the number is astronomical. Powerful telescopes have identified galaxies beyond our own. The number of stars is comparable to asking the number of snowflakes. Our own Milky Way galaxy is thought to contain some 150 billion stars.The Hubble space telescope has identified objects some 13 billion light years away. Astronomers refer to the galaxies closest to our own galaxy as "local" galaxies.
1005881
There are _trillions_ of stars in the Universe.  Our galaxy, the Milky Way, is composed of 300 - 400 billion stars.  There are _billions_ of galaxies in the Universe, many dwarfing the size of ours.\n\nThe chance of other life _not_ being out there is so close to zero that it can't even be calculated.  There are infinite possibilities in this Universe, and we haven't begun to study more than a tiny bit of them.\n\nTo anybody that has the audacity to say "no" there isn't, then get an ego check.  We aren't the only intelligent life in a Universe of infinite possibilities.
438209
According to the International Astronomical Union (the official policy making body for astronomers) there are 88 constellations.  Each constellation has its own 'border', and every object in the sky falls into one of those constellations.  The best picture I could find is below.  I hope this helped!