how many stars are there in the universe and if the universe infinite?

Answer 1

The other answers regarding star counts are accurate. In fact, just like people, stars are dying and being born all over the universe. Therefore an exact count would require omnicient overisght - there is no way a human being could know how many stars exist, are dying, and being born at one time.

While the universe has been thought to be infinite, or finite but really, really big, I like to conisder it finite with infinite ability for expansion. Of course, based on its current expansion rate, the universe will eventually begin to collapse.

Answer 2

It is estimated that there are about 100 billion stars in the Milky Way alone, and there is thought to be at least 100 billion galaxies in the universe. So if every galaxy had the same amount of stars that would be 10^22 stars. There is thought to be more stars in the universe than grains of sand on all the beaches of the Earth combined.

No one knows whether the universe in finite or infinite.

Answer 3

Well if the universe is finite and space infinite then as a % there are next to no stars at all? From the little I know on the subject stars are born and die all the time, but probably more stars die than are born so eventually there will again be no stars in the far distant future.

Unless of course space doesn’t fold back upon itself, in which case all matter will return to the same spot causing another big bang. Or the gravity of black holes suck in the matter and cause the same thing.

Answer 4

The observable universe is thought to contain about 7 × 10 to the 22nd power stars, organized in about 100 billion galaxies, which themselves form clusters and superclusters. The number of galaxies may be even larger, based on the Hubble Deep Field observed with the Hubble Space Telescope. The Hubble Space Telescope discovered galaxies such as Abell 1835 IR1916, which are over 13 billion light years from Earth.

There is no generally accepted theory making a pronouncement concerning whether the universe is indeed finite or infinite in spatial extent.

Answer 5

Trillions of star, literally uncountable. Most recent scientific estimates
of the size of the universe is 385billion light years.

Answer 6

To the answerers who said "billions" -- there are billions of stars in our galaxy alone, and there are hundreds of billions of galaxies that we can detect, to say nothing of those we can't yet detect. So, the number of stars is at least 10 to the 22nd power. That's a lot of zeroes.

Answer 7

The universe is finite, and therefore there must be a finite number of stars within it, but the number of them would be so vast that you'd never be able to count them all! (and the number keeps changing due to supernovae, black holes, new stars, etc.)

Answer 8

well i do know this question, i see it on one off the doc channels on sky. anyway no one knows, but there are more stars in the sky then there is more grains off sand on this earth. so talking about billions and billions. Hope that helps.

Answer 9

there are billions of stars and no the universe is finite

Answer 10

there are millions billions and maybe the number google there countless. stars fade.