The Universe appears to be dark because space (meaning nothing), contains no matter for the sun to shine on. Also, another reason is that the universe is so large that, if you were to even try to look at the edge of the universe from outer space, the light would not exist beyond a certain point (because of the measurement of lightyears, and the never ending radius of the universe that is expanding). Thus, the universe is black.
2/3 of its present size
No. The sun is a main sequence star. A black dwarf is the remnant of a dead star that has cooled. The universe is not old enough for this to have happened yet.
Sun is a Star of Fire in the universe.
No. There are estimated to be dozens or hundreds of black holes of various sizes in our galaxy, and billions in the universe as a whole.
No the sun is not the biggest in the universe. Other stars like V V Cephei, Rigel etc. are larger and more massive than the sun. Except stars, there are other things like galaxies, black holes, etc. which are bigger than any star in the universe.
The universe then the sun then the earth:)
I think it is because there is not enough sun to cover the universe since the sun is smaller than the universe and becasue the sun over powers the world and the chemicals in the air here are different to the ones in the universe which makes the world lighter. I'm not sure how to put it to make you guys understand it so that is the best I could do, Sorry :(
The sun was the center of the universe is an example of:
Many gases are present in the universe, but the most abundant is hydrogen
Our solar system and all the planets and asteroid that surround it are orbiting the sun as the sun's mass attracts them to it through the force of gravity. The Universe however is not.The galaxy, is centered around a "super massive black hole" according to some scientific discoveries.
Nicolaus Copernicus found that the sun is in center of the universe
There is a single sun in our own solar system, but not in the universe. There are trillions upon trillions of suns (or stars) in the universe.