How many stars are there in the sky?
820280
There are about 2800 stars that can be seen with the naked eye, if the conditions are ideal (no light pollution, super dark night with clear sky, and assuming you can only see part of the sky as a big part is on the other side of the planet) see link #1.\nHowever, if you want to know how many are there that could be visible if you had the most powerful telescope anyone can imagine, then the number is a bit more: 70 sextillion (see link #2).\nOur galaxy, the Milkyway, contains about 100 billion stars, and there are more galaxies in the universe than there are stars in a galaxy.
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?
1032061
well you think\nthere are billions of glaxies and inside those galaxyies there are billions of solar systems and inside those there are planets in each one  i havent even started to count the stars yet and it seems the possibility would be very likily
629998
The number of stars in the visible universe is estimated to be 70 sextillion, or 70,000,000,000,000,000,000,000 [seven followed by twenty-two zeros].\n\nor\n\nWikipedia 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.
243321
In space probably not, on another planet almost certain. Look in the sky at night there is something like 100 billion stars that we know of. If each star has say 5-10 planets orbiting it that means there are about 500 billion to 1 trillion planets out there. How can any logical person believe that were are the only 1 that can and does support life?
809888
All stars are round, and there are many trillions of stars, although you can only see about 3,000 of them at any one time without a telescope. The sun is a typical star, only much closer than all the others.
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.   :-)
68394
There was a study done by a group of Australian astronomers where they calculated (somehow) that there are approximately 70,000 million million million (or 70,000,000,000,000,000,000,000) stars in the known Universe, which means these are just the ones that we can see with our telescopes.  This is supposed to be 10 times the number of grains of sand on all the beaches and deserts in the world.
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.
633987
There are a lot of red stars in space. From Nasa's web site: "There are many normal red stars near the Sun, with temperatures of a few thousand degrees and masses much less than that of the Sun. None, however, is bright enough to be seen without a telescope. All of the bright red stars in the night sky are red giants and supergiants, counted among those we term abnormal stars. Examples are the supergiants Betelgeuse in Orion and Antares in Scorpius (each about 520 light years from Earth) and giant Aldebaran (68 light years) in Taurus."
589675
Yes many stars ar bigger than the Sun. The Sun is a middle aged small to mid sized star. Some of the really giant stars would even overlap the earth's orbit if they were placed where the Sun is. \n\nRefer the following links for some more info on stars.
606528
200 billion stars in the Milky Way.
166889
I live in a small town in the midwest and make it a point to go out and do some stargazing.  The street lights do wash out some of the dimmer stars, but there are still a lot of stars to see.  Going out into the countryside will reveal a lot more stars.  Not only the stars though, in the last week I have also seen Mars, Venus, Saturn, Jupiter and Mercury..and the most fantastic cresent moon in the early morning.  If a person can get up into the mountains at night (no mountains where I am at), the sky is very full of stars...way too cool.
552570
"Our own Milky Way, a typical giant spiral galaxy, includes at least 100 billion stars in its diameter." \n100 billion\n\nEncyclopedia Britannica. Astronomy. 2000. "There are about 100 billion stars in the Milky Way Galaxy" \n100 billion\n\nEddington, A. S. The Interior of a Star. 1926. "The Sun belongs to a system containing some 3,000 million stars." 3 billion\n\nBoorstein, Daniel J. Discovery of the World. New York: Random House, 1983: 320. "...the Galaxy is nothing else but a mass of innumerable stars planted together in clusters."\ninnumerable\n\nButterworth, Paul. Stars in Our Galaxy. Ask a High-Energy Astronomer. 1998. "We can only see a few thousand stars at most with our unaided eyes. These are a mixture of stars which are nearby, and bright stars which are further away; but they are only a tiny fraction of the 100,000,000,000 stars in our own galaxy." \n100 billion
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)
300780
there are several (you did not provide enough details)...could be a sun, galaxy, nebula, etc.
28023
The observable universe is estimated to contain:\n10^11 galaxies, 10^21 stars, and 10^78 atoms.\n\nThe means 100,000,000,000 galaxies.