No one knows for sure but it will be in the billions.
There are no known alien civilizations in our universe.
No; the two are quite different. The Universe is everything we can see; it contains many galaxies.
The answer is not determinable both because scientists have not determined the exact volume of the universe and because the universe is always expanding.
3
There is no specific number of UniVerse developers available as it varies over time. UniVerse is a niche technology and the exact number of developers actively working on it worldwide is not readily available.
yes
Galxies were once thought to be nebulaes
Nebulae are found in various places throughout every galaxy.
Nebulae are made of clouds of hydrogen and other elements or clouds of dust (dark nebulae)
Actually a galaxy is in a universe
there are 21 major religions in the universe
There is only one sky in the universe.
Well, the universe never stops so... the universe does not have a center.
The foundations of the universe are debated among many scholars. Many believe that the universe's foundation and emergence came from the combining of simple elements like hydrogen and oxygen.
There are no known alien civilizations in our universe.
The Hidden Universe has 134 pages.
The Catalogue of the Universe has 224 pages.