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One estimate is that there are 1010 stars in the Milky Way galaxy, and that there are 1010 galaxies in the universe. Assuming that the number of stars in the Milky Way is the average number, how many stars are in the universe?
I assume that your 1010 means $10^10$. Then the number of stars is simply $10^10*10^10=10^20$.
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Current scientific models say the Universe is still expanding. Are there any theories to explain what the Universe is expanding into?
The universe is expanding at an increasing rate, the the three theories as to what is going to happen next are: "The Big Rip": The universe will expand to the...
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If the universe is expanding, what is it expanding into?
Technically physicists all over the world have been working to solve the mystery of origin of our Universe.Various models of theory of Big Bang have been developed over time....
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Is our universe expanding? Or does it only seem bigger because our ability to look further into the universe has grown?
Dark matter is causing the universe to expand and it has been observed to happen as we've seen galaxies move farther apart. Gravity is what keeps galaxies together
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If the universe is expanding, are there more structures such as galaxies, stars, etc., towards its center rather than at the newer edge?
If you think of an enlarging gas balloon, the galaxies are on the surface of the balloon, moving away from each other. The Universe is supposed to be finite and...
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Does the expanding universe model mean that our Milky Way galaxy is at the center of the universe?
The expanding universe model describes universal inflation. Every spatial point in the universe is expanding simultaneously. No one thing is at the center of the universe. People often relate...
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What is it expanding into? Will it ever stop? Will we ever be able to go outside the zone it is expanding into?
The concept of the makeup of the universe is extremely confusing for most people. First of all, it is generally agreed that the universe is ball shaped. However! There is...
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If space isn't part of the Universe, what is the Universe expanding into?
It is a common misconception to think that there is something larger than the universe, and that the universe is expanding into it (perhaps to fill it at some point?)....
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As the universe is expanding, is the solar system also expanding?
The problem of what happens to mass distributions in an expanding Universe has been studied carefully for an ideal case of spherical distribution of matter in a flat - matter...
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If the universe is an expanding sphere, what space is it expanding into?
For 3-D sphere, $d/(da)((4/3)pia^3)= 4pia^2$. I had proved this 40 years ago, for hypersphere, in a paper titled "The rate of change of hypervolume is hypersurface". I am aware that...
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