HOw many of the stars are really still in existence.?
92547
This is a very difficult question. We don't really know how many stars currently exist, so let's rephrase the question to "how many stars in the night sky visible to the naked eye still exist?" (An easier question would be "does star xyz still exist?") If all of these stars are classified into groups whose average lifespans are known, and if the current ages of these stars can be estimated, then using the estimated time that light takes to travel from a particular star to Earth, we can determine if the star has already gone supernova, or if it has darkened. Since most stars visible to the naked eye are relatively young (as compared with super-distant stars visible through huge telescopes), it is likely that a significant proportion of them do still exist. But, again, the question is extremely difficult, but makes for some good thinking.
1006929
Seriously, this is funny. Anyhow, there is absolutely no way of knowing how many planets exist in the entire universe as the universe as we know it is far to huge for any of our technology to fully explore. \n\nAnyhow, please stick with the topic. This has absolutely NOTHING to do with computers.\n\nThanks!
1126282
Consider this there are billions upon billions of stars in each galaxy we are just 1 galaxy and there are billions upon billions of galaxy's in the universe. So the question should start with the universe.
113742
No one can say for certain. Matter of fact we don't know exactly how many stars there are in our own Milky Way Galaxy. Most guestimates for the Milky Way run to about 250-billion stars. Then there are about 250-billion other galaxies in the observable universe, each with more or less 250-billion stars each. A reasonable ball park figure for total number of stars in the observable universe would be approximately---approximately!---   5^22. That's 5 followed by 22 zeros.
1037220
There are definetly more than nine planetes in the solar system.There are many discovered by scientists and many more are yet to be found. And it is suggested that there are many more solar systems in the milky way.
50134
Given the number of stars in our galaxy alone, its highly probably that a star like our own sun exists with satellites like our earth orbiting it.  Of course if you're looking for a name of another planet with life on it you won't find that just yet.
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).
606528
200 billion stars in the Milky Way.
671223
Like the number of grains of sand on the beach or angels that can dance on the head of a pin, the number of stars in the sky remains a great unknown. Discussing the number of stars in the Milky Way alone, astronomer William Keel, writing for the sci.astro Galaxies FAQ, claims that there are "about as many as the number of hamburgers sold by McDonald's." \nThen he elaborates. The usual way to determine the number of stars in the universe is to consider how many stars there are in the Milky Way, and then to multiply that number by our best guesstimate at the number of galaxies in the universe. This FAQ suggests there are probably about 400 billion stars in the Milky Way, although "a 50% error either way is quite plausible." As for the number of galaxies in the universe, well that's a whole separate mathematical puzzle. \n\nOther star enumerators we located on the Web offer numbers ranging from more than 200 billion stars in our galaxy to 3 thousand million billion stars (3 followed by 16 zeroes), in the universe. NASA alleges there are zillions of uncountable stars.
902366
Heres a web site that discusses the fate of stars of 20 solar masses and up:\n\nhttp://observe.arc.nasa.gov/nasa/space/stellardeath/stellardeath_3.html
485969
There are lots of different types of stars, all with different 'lifespans'. Ours is about 4.5 Billion years old and should 'live' to the ripe old age of about 10 Billion years old.
249105
Thirteen.\n\nOriginally it was thought there were the nine that were 'found' by Voyager 2 in 1986. Since then there's been more exploration and the discovery using the Hubble Telescope in December last year brought the current total to 13.  There's also incomplete rings called Ring Arcs
973173
There are more stars than we can count.  Most of them have planets.   Most of those planets have moons.
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.
364385
Stars are not scattered randomly through space, they are gathered together into vast groups known as galaxies. The Sun belongs to a galaxy called the Milky Way. Astronomers estimate there are about 100 thousand million stars in the Milky Way alone. Outside that, there are millions upon millions of other galaxies also!  \n \n  \n \n \n Hipparcos mapped millions of stars in our galaxy, but how many more are there? \nIt has been said that counting the stars in the Universe is like trying to count the number of sand grains on a beach on Earth. We might do that by measuring the surface area of the beach, and determining the average depth of the sand layer. \n\nIf we count the number of grains in a small representative volume of sand, by multiplication we can estimate the number of grains on the whole beach. \n\nFor the Universe, the galaxies are our small representative volumes, and there are something like 1011 to 1012 stars in our galaxy, and there are perhaps something like 1011 or 1012 galaxies. \n\nWith this simple calculation you get something like 1022 to 1024 stars in the Universe. This is only a rough number, as obviously not all galaxies are the same, just like on a beach the depth of sand will not be the same in different places. \n\nNo one would try to count stars individually, instead we measure integrated quantitites like the number and luminosity of galaxies. ESA's infrared space observatory Herschel, to be launched in 2007, will make an important contribution by 'counting' galaxies in the infrared, and measuring their luminosity in this range - something never before attempted.
83664
If you rely on the law of probability, then my opinion would be yes. This of course has not been proven, however, with more than 16 Billion other stars such as our sun in the Milky Way Galaxy. Let's say only a quarter of them have stable planetary orbit systems. That is still 4 BILLION opportunities for life. Now if we broke that down and said that only 1 % of those solar systems had a chance for intelligent life of some sort, that would still be 400,000 opportunities! I am speaking of our galaxy alone. There are 250 Billion Plus other galaxies with similiar potential. Alone???? I think not!
224500
Wikipedia claims that the observable universe contains about 7 × 1022 stars, organized in about 100 billion galaxies, which themselves form clusters and superclusters. An Ask the Scientist response to this question claimed that there are about 10 billion (10^10) stars in an average galaxy, \nand there are about 10 billion galaxies that we can observe in the universe, so the answer is 100 billion billion or 10^20. I don't think it is an issue that we have a precise answer for as yet.